94 results on '"Lingham G"'
Search Results
2. Subthreshold Nanosecond Laser in Age-Related Macular Degeneration: Observational Extension Study of the LEAD Clinical Trial
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Al-Qureshi, S., Busija, L., I, Louis, D., Harper, C., Wickremasinghe, S., Van Wijngaarden, P., Lim, L., Durkin, S., Runciman, J., Gihotra, J., Muecke, J., Haywood, K., Brko, C., Paley, J., Smith, M., Luscombe, C., Vincent, R., Lee, D., Guymer, R.H., Luu, C., Wu, Z., Hodgson, L.A.B., Brassington, K., Caruso, E., McGuinness, M., Tindill, N., Aung, K.Z., Baglin, E., Sharangan, P., Harper, C.A., Sandhu, S., Nguyen, T., Cohn, A., Qatarneh, D., Robman, L., Makeyeva, G., Tan, R., Taori, S., Creese, K., Chen, M., Ong, D., No, S., Kandasamy, R., Lim, S.W., Okada, M., Cugley, D., O'Day, R., Keller, P., Lee, K., Alessandrello, E., Alessi-Calandro, J., Kolic, M., Wu, T., Griffin, S., Lek, J.J., Heriot, W., Fagan, X., McIntosh, R., Lowe, C., Boyle, J., Shanahan, O., Chen, F., McAllister, I., Isaacs, T., Shaw, A., Balarantnasingam, C., Chen, Y., Cunningham, W., Viljoen, R., Kennelly, K., Blum, R., Arunachalam, S., Razavi, H., Adams, M., Brown, H., Bryant, J., Cowles, R., Radtke, S., Barry, C., Wong, E., Shilton, F., Soloshenko, A., Jason, A., Lin, A., McSweeney, A., King, A., Shalan, B., Xie, D., Vu, H., Tang, I., Mather, K., Cuypers, M., Cheng, M., McKeone, R., Busby, T., Matthews, R., Lingham, G., Arnold, J., Luckie, A., Chan, D., Chang, J., Tan, T., Koh, L., Cass, H., Fitzsimons, R., Forsyth, T., Nguyen, A., Ghebrial, V., Ayson, H., Graham, A., Firibaldi, M., Chakravarthy, U., Kelly, L., Gillvray, K., Williams, M., Casalino, G., Mangoris, G., Das, R., Peto, T., Toth, L., Quinn, M., Denham, R., Lavery, N.J., Sterrett, G., Silvestri, V., Young, G., Graham, K., Keenan, J., Doyle, L., Douglas, T., Burns, D., Wright, P., Scullion, L., Guymer, Robyn H., Chen, Fred K., Hodgson, Lauren A.B., Caruso, Emily, Harper, Colin A., Wickremashinghe, Sanjeewa S., Cohn, Amy C., Sivarajah, Pyrawy, Tindill, Nicole, Luu, Chi D., and Wu, Zhichao
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- 2021
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3. A systematic review of clinical practice guidelines for myopic macular degeneration
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Chen, Y, Han, X, Gordon, I, Safi, S, Lingham, G, Evans, J, Li, J, He, M, Keel, S, Chen, Y, Han, X, Gordon, I, Safi, S, Lingham, G, Evans, J, Li, J, He, M, and Keel, S
- Abstract
BACKGROUND: Myopic macular degeneration (MMD) is a primary cause of blindness and visual impairment in many parts of the world. A review of clinical practice guidelines (CPGs) for intervention selection are required with the increasing demand for MMD management in clinical practice as well as in national health services. Therefore, we aim to systematically review CPGs for MMD and assist the recommendations development of the Package of Eye Care Interventions (PECI) program of the World Health Organization. METHODS: A systematic review of CPGs published on MMD between 2010 and April 2020 was conducted. Guidelines were evaluated using the Appraisal of Guidelines for Research and Evaluation II (AGREE II) tool. Cochrane systematic reviews were also included when the evidence from included CPGs were inadequate or contradict. RESULTS: After applying exclusion criteria and conducting the quality appraisal, two CPGs were finally included. The average of the AGREE II ratings for the identified Guidelines were 56 and 63 respectively (7 for each item). To provide further information on interventions for MMD, one Cochrane review on MMD was additionally identified and included in the study. Intravitreal anti-vascular endothelial growth factor (anti-VEGF) drugs were recommended for patients with myopic choroidal neovascularization (mCNV) as first-line therapy to improve vision and reduce central macular thickness, and ranibizumab showed significant effectiveness compared to photodynamic therapy (PDT). PDT was recommended to be performed in those resistant to the treatment by one CPG but lacked of adequate description and support. Data extracted from the Cochrane systematic reviews indicated that anti-VEGF therapy for mCNV had significant effectiveness in improving visual acuity and reducing CMT compared to PDT with moderate to low certainty of evidence. Ranibizumab and bevacizumab were considered as equally effective with moderate certainty. CONCLUSIONS: The outcomes of this revi
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- 2022
4. Associations of 12-year sleep behaviour trajectories from childhood to adolescence with myopia and ocular biometry during young adulthood
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Stafford-Bell, N, McVeigh, J, Lingham, G, Straker, L, Eastwood, PR, Yazar, S, Mackey, DA, Lee, SS-Y, Stafford-Bell, N, McVeigh, J, Lingham, G, Straker, L, Eastwood, PR, Yazar, S, Mackey, DA, and Lee, SS-Y
- Abstract
PURPOSE: Cross-sectional studies have variably reported that poor sleep quality may be associated with myopia in children. Longitudinal data, collected over the ages when myopia develops and progresses, could provide new insights into the sleep-myopia paradigm. This study tested the hypothesis that 12-year trajectories of sleep behaviour from childhood to adolescence is associated with myopia during young adulthood. METHODS: At the 5-, 8-, 10-, 14- and 17-year follow-ups of the longitudinal Raine Study, which has been following a cohort since their birth in 1989-1992, participants' parents/guardians completed the Child Behaviour Checklist questionnaire (CBCL), which collected information on their child's sleep behaviour and quality. The CBCL includes six questions measuring sleep behaviour, which parents rated as 0 = not true, 1 = somewhat/sometimes true, or 2 = very/often true. Scores were summed at each follow-up to form a composite "sleep behaviour score". Latent Class Growth Analysis (LCGA) was used to classify participants according to their 12-year trajectory of sleep behaviour. At the 20-year follow-up, an eye examination was performed which included cycloplegic autorefraction and axial length measurement. RESULTS: The LCGA identified three clusters of participants based on their trajectory of sleep behaviour: those with minimal' (43.6% of the total Raine Study sample), 'declining' (48.9%), or 'persistent' (7.5%) sleep problems. A total of 1194 participants had ophthalmic data and longitudinal sleep data available for analysis (47.2% female, 85.6% Caucasian). No significant differences were observed in regards to age, sex, ethnicity or ocular parameters between trajectory groups. Unadjusted and fully adjusted analyses demonstrated that sleep problem behaviour was not significantly associated with changes in refractive error, axial length or corneal radius. CONCLUSIONS: Our findings do not support the hypothesis that there is an association between sleep behav
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- 2022
5. Axial length distributions in patients with genetically confirmed inherited retinal diseases
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Williams, K.M., Georgiou, M., Kalitzeos, A., Chow, I., Hysi, P.G., Robson, A.G., Lingham, G., Chen, F.K., Mackey, D.A., Webster, A.R., Hammond, C.J., Prokhoda, P., Carroll, J., Michaelides, M., Mahroo, O.A., Williams, K.M., Georgiou, M., Kalitzeos, A., Chow, I., Hysi, P.G., Robson, A.G., Lingham, G., Chen, F.K., Mackey, D.A., Webster, A.R., Hammond, C.J., Prokhoda, P., Carroll, J., Michaelides, M., and Mahroo, O.A.
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Purpose: We investigated axial length (AL) distributions in inherited retinal diseases (IRDs), comparing them with reference cohorts. Methods: AL measurements from IRD natural history study participants were included and compared with reference cohorts (TwinsUK, Raine Study Gen2-20, and published studies). Comparing with the Raine Study cohort, formal odds ratios (ORs) for AL ≥ 26 mm or AL ≤ 22 mm were derived for each IRD (Firth's logistic regression model, adjusted for age and sex). Results: Measurements were available for 435 patients (median age, 19.5 years). Of 19 diseases, 10 had >10 participants: ABCA4 retinopathy; CNGB3- and CNGA3-associated achromatopsia; RPGR-associated disease; RPE65-associated disease; blue cone monochromacy (BCM); Bornholm eye disease (BED); TYR- and OCA2-associated oculocutaneous albinism; and GPR143-associated ocular albinism. Compared with the TwinsUK cohort (n = 322; median age, 65.1 years) and Raine Study cohort (n = 1335; median age, 19.9 years), AL distributions were wider in the IRD groups. Increased odds for longer ALs were observed for BCM, BED, RPGR, RPE65, OCA2, and TYR; increased odds for short AL were observed for RPE65, TYR, and GPR143. In subanalysis of RPGR-associated disease, longer average ALs occurred in cone–rod dystrophy (n = 5) than rod–cone dystrophy (P = 0.002). Conclusions: Several diseases showed increased odds for longer AL (highest OR with BCM); some showed increased odds for shorter AL (highest OR with GPR143). Patients with RPE65- and TYR-associated disease showed increased odds for longer and for shorter eyes. Albinism genes were associated with different effects on AL. These findings add to the phenotype of IRDs and may yield insights into mechanisms of refractive error development.
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- 2022
6. Choroidal thickening during young adulthood and baseline choroidal thickness predicts refractive error change
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Lee, S.S-Y, Alonso-Caneiro, D., Lingham, G., Chen, F.K., Sanfilippo, P.G., Yazar, S., Mackey, D.A., Lee, S.S-Y, Alonso-Caneiro, D., Lingham, G., Chen, F.K., Sanfilippo, P.G., Yazar, S., and Mackey, D.A.
- Abstract
Purpose: The purpose of this study was to explore the age-related change in choroidal thickness (ChT) and test the hypothesis that baseline ChT is predictive of refractive error change in healthy young adults. Methods: Participants underwent spectral-domain optical coherence tomography (SD-OCT) imaging and autorefraction at 20 (baseline) and 28 years old. The enhanced depth imaging mode on the SD-OCT was used to obtain images of the choroid. Scans were exported from the SD-OCT and analyzed with a custom software that automatically measures the central ChT. The longitudinal change in subfoveal ChT and association between baseline subfoveal ChT and 8-year change in refractive error (spherical equivalent) were determined using linear mixed models. Results: In total, 395 eyes of 198 participants (44% men; 18–22 years at baseline) were included. Over 8 years, mean spherical equivalent decreased by 0.25 diopters (D) and axial length increased by 0.09 mm. Subfoveal choroid thickened by 1.3 µm/year (95% confidence interval [CI] = 0.6–2.0), but this was reduced by 0.9 µm/year (95% CI = 1.6–0.2) for every 1 mm increase in axial length. For every 10 µm increase in baseline ChT, average annual change in spherical equivalent and axial length reduced by 0.006 D/year and 0.003 mm/year, respectively. Conclusions: In a community-based cohort of young adults, the choroid continued to change during early adulthood. Choroidal thickening was less in eyes that were longer at baseline, and the choroid thinned in eyes that showed myopia progression. The association between baseline ChT and longitudinal changes in spherical equivalent and axial length supports the hypothesis that ChT may be predictive of refractive error development and/or myopia progression.
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- 2022
7. Choroidal Thickening During Young Adulthood and Baseline Choroidal Thickness Predicts Refractive Error Change.
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Lee, SS-Y, Alonso-Caneiro, D, Lingham, G, Chen, FK, Sanfilippo, PG, Yazar, S, Mackey, DA, Lee, SS-Y, Alonso-Caneiro, D, Lingham, G, Chen, FK, Sanfilippo, PG, Yazar, S, and Mackey, DA
- Abstract
PURPOSE: The purpose of this study was to explore the age-related change in choroidal thickness (ChT) and test the hypothesis that baseline ChT is predictive of refractive error change in healthy young adults. METHODS: Participants underwent spectral-domain optical coherence tomography (SD-OCT) imaging and autorefraction at 20 (baseline) and 28 years old. The enhanced depth imaging mode on the SD-OCT was used to obtain images of the choroid. Scans were exported from the SD-OCT and analyzed with a custom software that automatically measures the central ChT. The longitudinal change in subfoveal ChT and association between baseline subfoveal ChT and 8-year change in refractive error (spherical equivalent) were determined using linear mixed models. RESULTS: In total, 395 eyes of 198 participants (44% men; 18-22 years at baseline) were included. Over 8 years, mean spherical equivalent decreased by 0.25 diopters (D) and axial length increased by 0.09 mm. Subfoveal choroid thickened by 1.3 µm/year (95% confidence interval [CI] = 0.6-2.0), but this was reduced by 0.9 µm/year (95% CI = 1.6-0.2) for every 1 mm increase in axial length. For every 10 µm increase in baseline ChT, average annual change in spherical equivalent and axial length reduced by 0.006 D/year and 0.003 mm/year, respectively. CONCLUSIONS: In a community-based cohort of young adults, the choroid continued to change during early adulthood. Choroidal thickening was less in eyes that were longer at baseline, and the choroid thinned in eyes that showed myopia progression. The association between baseline ChT and longitudinal changes in spherical equivalent and axial length supports the hypothesis that ChT may be predictive of refractive error development and/or myopia progression.
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- 2022
8. Axial Length Distributions in Patients With Genetically Confirmed Inherited Retinal Diseases.
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Williams, KM, Georgiou, M, Kalitzeos, A, Chow, I, Hysi, PG, Robson, AG, Lingham, G, Chen, FK, Mackey, DA, Webster, AR, Hammond, CJ, Prokhoda, P, Carroll, J, Michaelides, M, Mahroo, OA, Williams, KM, Georgiou, M, Kalitzeos, A, Chow, I, Hysi, PG, Robson, AG, Lingham, G, Chen, FK, Mackey, DA, Webster, AR, Hammond, CJ, Prokhoda, P, Carroll, J, Michaelides, M, and Mahroo, OA
- Abstract
PURPOSE: We investigated axial length (AL) distributions in inherited retinal diseases (IRDs), comparing them with reference cohorts. METHODS: AL measurements from IRD natural history study participants were included and compared with reference cohorts (TwinsUK, Raine Study Gen2-20, and published studies). Comparing with the Raine Study cohort, formal odds ratios (ORs) for AL ≥ 26 mm or AL ≤ 22 mm were derived for each IRD (Firth's logistic regression model, adjusted for age and sex). RESULTS: Measurements were available for 435 patients (median age, 19.5 years). Of 19 diseases, 10 had >10 participants: ABCA4 retinopathy; CNGB3- and CNGA3-associated achromatopsia; RPGR-associated disease; RPE65-associated disease; blue cone monochromacy (BCM); Bornholm eye disease (BED); TYR- and OCA2-associated oculocutaneous albinism; and GPR143-associated ocular albinism. Compared with the TwinsUK cohort (n = 322; median age, 65.1 years) and Raine Study cohort (n = 1335; median age, 19.9 years), AL distributions were wider in the IRD groups. Increased odds for longer ALs were observed for BCM, BED, RPGR, RPE65, OCA2, and TYR; increased odds for short AL were observed for RPE65, TYR, and GPR143. In subanalysis of RPGR-associated disease, longer average ALs occurred in cone-rod dystrophy (n = 5) than rod-cone dystrophy (P = 0.002). CONCLUSIONS: Several diseases showed increased odds for longer AL (highest OR with BCM); some showed increased odds for shorter AL (highest OR with GPR143). Patients with RPE65- and TYR-associated disease showed increased odds for longer and for shorter eyes. Albinism genes were associated with different effects on AL. These findings add to the phenotype of IRDs and may yield insights into mechanisms of refractive error development.
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- 2022
9. Toward Universal Eye Health Coverage-Key Outcomes of the World Health Organization Package of Eye Care Interventions A Systematic Review
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Keel, S, Lingham, G, Misra, N, Block, S, Bourne, R, Calonge, M, Cheng, C-Y, Friedman, DS, Furtado, JM, Khanna, R, Mariotti, S, Mathenge, W, Matoto, E, Mueeller, A, Rabiu, M, Rasengane, T, Resnikoff, S, Wormald, R, Yasmin, S, Zhao, J, Evans, JR, Cieza, A, Keel, S, Lingham, G, Misra, N, Block, S, Bourne, R, Calonge, M, Cheng, C-Y, Friedman, DS, Furtado, JM, Khanna, R, Mariotti, S, Mathenge, W, Matoto, E, Mueeller, A, Rabiu, M, Rasengane, T, Resnikoff, S, Wormald, R, Yasmin, S, Zhao, J, Evans, JR, and Cieza, A
- Abstract
IMPORTANCE: Despite persistent inequalities in access to eye care services globally, guidance on a set of recommended, evidence-based eye care interventions to support country health care planning has not been available. To overcome this barrier, the World Health Organization (WHO) Package of Eye Care Interventions (PECI) has been developed. OBJECTIVE: To describe the key outcomes of the PECI development. EVIDENCE REVIEW: A standardized stepwise approach that included the following stages: (1) selection of priority eye conditions by an expert panel after reviewing epidemiological evidence and health facility data; (2) identification of interventions and related evidence for the selected eye conditions from a systematic review of clinical practice guidelines (CPGs); stage 2 included a systematic literature search, screening of title and abstracts (excluding articles that were not relevant CPGs), full-text review to assess disclosure of conflicts of interest and affiliations, quality appraisal, and data extraction; (3) expert review of the evidence extracted in stage 2, identification of missed interventions, and agreement on the inclusion of essential interventions suitable for implementation in low- and middle-income resource settings; and (4) peer review. FINDINGS: Fifteen priority eye conditions were chosen. The literature search identified 3601 articles. Of these, 469 passed title and abstract screening, 151 passed full-text screening, 98 passed quality appraisal, and 87 were selected for data extraction. Little evidence (≤1 CPG identified) was available for pterygium, keratoconus, congenital eyelid disorders, vision rehabilitation, myopic macular degeneration, ptosis, entropion, and ectropion. In stage 3, domain-specific expert groups voted to include 135 interventions (57%) of a potential 235 interventions collated from stage 2. After synthesis across all interventions and eye conditions, 64 interventions (13 health promotion and education, 6 screening and prev
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- 2022
10. Low-concentration atropine eyedrops for myopia control in a multi-racial cohort of Australian children: A randomised clinical trial
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Lee, SS-Y, Lingham, G, Blaszkowska, M, Sanfilippo, PG, Koay, A, Franchina, M, Chia, A, Loughman, J, Flitcroft, DI, Hammond, CJ, Azuara-Blanco, A, Crewe, JM, Clark, A, Mackey, DA, Lee, SS-Y, Lingham, G, Blaszkowska, M, Sanfilippo, PG, Koay, A, Franchina, M, Chia, A, Loughman, J, Flitcroft, DI, Hammond, CJ, Azuara-Blanco, A, Crewe, JM, Clark, A, and Mackey, DA
- Abstract
BACKGROUND: To test the hypothesis that 0.01% atropine eyedrops are a safe and effective myopia-control approach in Australian children. METHODS: Children (6-16 years; 49% Europeans, 18% East Asian, 22% South Asian, and 12% other/mixed ancestry) with documented myopia progression were enrolled into this single-centre randomised, parallel, double-masked, placebo-controlled trial and randomised to receive 0.01% atropine (n = 104) or placebo (n = 49) eyedrops (2:1 ratio) instilled nightly over 24 months (mean index age = 12.2 ± 2.5 and 11.2 ± 2.8 years, respectively). Outcome measures were the changes in spherical equivalent (SE) and axial length (AL) from baseline. RESULTS: At 12 months, the mean SE and AL change from baseline were -0.31D (95% confidence interval [CI] = -0.39 to -0.22) and 0.16 mm (95%CI = 0.13-0.20) in the atropine group and -0.53D (95%CI = -0.66 to -0.40) and 0.25 mm (95%CI = 0.20-0.30) in the placebo group (group difference p ≤ 0.01). At 24 months, the mean SE and AL change from baseline was -0.64D (95%CI = -0.73 to -0.56) and 0.34 mm (95%CI = 0.30-0.37) in the atropine group, and -0.78D (95%CI = -0.91 to -0.65) and 0.38 mm (95%CI = 0.33-0.43) in the placebo group. Group difference at 24 months was not statistically significant (p = 0.10). At 24 months, the atropine group had reduced accommodative amplitude and pupillary light response compared to the placebo group. CONCLUSIONS: In Australian children, 0.01% atropine eyedrops were safe, well-tolerated, and had a modest myopia-control effect, although there was an apparent decrease in efficacy between 18 and 24 months, which is likely driven by a higher dropout rate in the placebo group.
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- 2022
11. Subthreshold Nanosecond Laser in Age-Related Macular Degeneration: Observational Extension Study of the LEAD Clinical Trial
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Guymer, Robyn H., primary, Chen, Fred K., additional, Hodgson, Lauren A.B., additional, Caruso, Emily, additional, Harper, Colin A., additional, Wickremashinghe, Sanjeewa S., additional, Cohn, Amy C., additional, Sivarajah, Pyrawy, additional, Tindill, Nicole, additional, Luu, Chi D., additional, Wu, Zhichao, additional, Al-Qureshi, S., additional, Busija, L., additional, Louis, D., additional, Harper, C., additional, Wickremasinghe, S., additional, Van Wijngaarden, P., additional, Lim, L., additional, Durkin, S., additional, Runciman, J., additional, Gihotra, J., additional, Muecke, J., additional, Haywood, K., additional, Brko, C., additional, Paley, J., additional, Smith, M., additional, Luscombe, C., additional, Vincent, R., additional, Lee, D., additional, Guymer, R.H., additional, Luu, C., additional, Wu, Z., additional, Hodgson, L.A.B., additional, Brassington, K., additional, Caruso, E., additional, McGuinness, M., additional, Tindill, N., additional, Aung, K.Z., additional, Baglin, E., additional, Sharangan, P., additional, Harper, C.A., additional, Sandhu, S., additional, Nguyen, T., additional, Cohn, A., additional, Qatarneh, D., additional, Robman, L., additional, Makeyeva, G., additional, Tan, R., additional, Taori, S., additional, Creese, K., additional, Chen, M., additional, Ong, D., additional, No, S., additional, Kandasamy, R., additional, Lim, S.W., additional, Okada, M., additional, Cugley, D., additional, O'Day, R., additional, Keller, P., additional, Lee, K., additional, Alessandrello, E., additional, Alessi-Calandro, J., additional, Kolic, M., additional, Wu, T., additional, Griffin, S., additional, Lek, J.J., additional, Heriot, W., additional, Fagan, X., additional, McIntosh, R., additional, Lowe, C., additional, Boyle, J., additional, Shanahan, O., additional, Chen, F., additional, McAllister, I., additional, Isaacs, T., additional, Shaw, A., additional, Balarantnasingam, C., additional, Chen, Y., additional, Cunningham, W., additional, Viljoen, R., additional, Kennelly, K., additional, Blum, R., additional, Arunachalam, S., additional, Razavi, H., additional, Adams, M., additional, Brown, H., additional, Bryant, J., additional, Cowles, R., additional, Radtke, S., additional, Barry, C., additional, Wong, E., additional, Shilton, F., additional, Soloshenko, A., additional, Jason, A., additional, Lin, A., additional, McSweeney, A., additional, King, A., additional, Shalan, B., additional, Xie, D., additional, Vu, H., additional, Tang, I., additional, Mather, K., additional, Cuypers, M., additional, Cheng, M., additional, McKeone, R., additional, Busby, T., additional, Matthews, R., additional, Lingham, G., additional, Arnold, J., additional, Luckie, A., additional, Chan, D., additional, Chang, J., additional, Tan, T., additional, Koh, L., additional, Cass, H., additional, Fitzsimons, R., additional, Forsyth, T., additional, Nguyen, A., additional, Ghebrial, V., additional, Ayson, H., additional, Graham, A., additional, Firibaldi, M., additional, Chakravarthy, U., additional, Kelly, L., additional, Gillvray, K., additional, Williams, M., additional, Casalino, G., additional, Mangoris, G., additional, Das, R., additional, Peto, T., additional, Toth, L., additional, Quinn, M., additional, Denham, R., additional, Lavery, N.J., additional, Sterrett, G., additional, Silvestri, V., additional, Young, G., additional, Graham, K., additional, Keenan, J., additional, Doyle, L., additional, Douglas, T., additional, Burns, D., additional, Wright, P., additional, and Scullion, L., additional
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- 2021
- Full Text
- View/download PDF
12. Time spent outdoors in childhood is associated with reduced risk of myopia as an adult
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Lingham, G, Yazar, S ; https://orcid.org/0000-0003-0994-6196, Lucas, RM, Milne, E, Hewitt, AW, Hammond, CJ, MacGregor, S, Rose, KA, Chen, FK, He, M, Guggenheim, JA, Clarke, MW, Saw, SM, Williams, C, Coroneo, MT ; https://orcid.org/0000-0002-3061-2011, Straker, L, Mackey, DA, Lingham, G, Yazar, S ; https://orcid.org/0000-0003-0994-6196, Lucas, RM, Milne, E, Hewitt, AW, Hammond, CJ, MacGregor, S, Rose, KA, Chen, FK, He, M, Guggenheim, JA, Clarke, MW, Saw, SM, Williams, C, Coroneo, MT ; https://orcid.org/0000-0002-3061-2011, Straker, L, and Mackey, DA
- Abstract
Myopia (near-sightedness) is an important public health issue. Spending more time outdoors can prevent myopia but the long-term association between this exposure and myopia has not been well characterised. We investigated the relationship between time spent outdoors in childhood, adolescence and young adulthood and risk of myopia in young adulthood. The Kidskin Young Adult Myopia Study (KYAMS) was a follow-up of the Kidskin Study, a sun exposure-intervention study of 1776 children aged 6–12 years. Myopia status was assessed in 303 (17.6%) KYAMS participants (aged 25–30 years) and several subjective and objective measures of time spent outdoors were collected in childhood (8–12 years) and adulthood. Index measures of total, childhood and recent time spent outdoors were developed using confirmatory factor analysis. Logistic regression was used to assess the association between a 0.1-unit change in the time outdoor indices and risk of myopia after adjusting for sex, education, outdoor occupation, parental myopia, parental education, ancestry and Kidskin Study intervention group. Spending more time outdoors during childhood was associated with reduced risk of myopia in young adulthood (multivariable odds ratio [OR] 0.82, 95% confidence interval [CI] 0.69, 0.98). Spending more time outdoors in later adolescence and young adulthood was associated with reduced risk of late-onset myopia (≥ 15 years of age, multivariable OR 0.79, 95% CI 0.64, 0.98). Spending more time outdoors in both childhood and adolescence was associated with less myopia in young adulthood.
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- 2021
13. Distribution and classification of peripapillary retinal nerve fiber layer thickness in healthy young adults
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Lingham, G., Lee, S.S-Y, Charng, J., Clarke, A., Chen, F.K., Yazar, S., Mackey, D.A., Lingham, G., Lee, S.S-Y, Charng, J., Clarke, A., Chen, F.K., Yazar, S., and Mackey, D.A.
- Abstract
Purpose: To report the distribution of peripapillary retinal nerve fiber layer (RNFL) thickness in healthy young adults, investigate factors associated with RNFL thickness, and report the percentage of outside normal limits (ONL) and borderline (BL) RNFL thickness classifications based on the optical coherence tomography (OCT) manufacturer reference database. Methods: Participants of the Raine Study Generation 2 cohort (aged 18–22 years) underwent spectral domain OCT imaging with an RNFL circle scan. Eyes with inadequate scans or optic nerve pathology were excluded. Linear mixed models were used to analyze associations. Results: Data were available for 1288 participants (mean age, 20.0 years). Mean RNFL thicknesses in right and left eyes, respectively, were global = 100.5 µm, 100.3 µm (P = 0.03); temporal = 73.1 µm, 68.9 µm (P < 0.001); superotemporal = 140.6 µm, 136.3 µm (P < 0.001); superonasal = 104.9 µm, 115.1 µm (P < 0.001); nasal = 79.7 µm, 79.1 µm (P = 0.09); inferonasal = 109.8 µm, 111.5 µm (P < 0.001); and inferotemporal = 143.2 µm, 143.6 µm (P = 0.51). Longer axial length was associated with thinner RNFL globally, nasally, inferotemporally, superotemporally, superonasally, and inferonasally, as well as thicker RNFL temporally. The prevalence of ONL and BL classifications was generally higher than the expected rates of 1% and 4%, respectively, in temporal sectors and lower than expected in nasal sectors. The prevalence of global BL classifications was lower than expected (right eye, 2.3%; left eye, 2.6%). Conclusions: Measured RNFL thickness differs with axial length and between right and left eyes. More reference data are needed to better define the normal limits of RNFL variation in different populations. Translational Relevance: This study provides an improved understanding of normal variation in RNFL thickness in young adults.
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- 2021
14. Distribution and Classification of Peripapillary Retinal Nerve Fiber Layer Thickness in Healthy Young Adults
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Lingham, G, Lee, SS-Y, Charng, J, Clark, A, Chen, FK, Yazar, S, Mackey, DA, Lingham, G, Lee, SS-Y, Charng, J, Clark, A, Chen, FK, Yazar, S, and Mackey, DA
- Abstract
PURPOSE: To report the distribution of peripapillary retinal nerve fiber layer (RNFL) thickness in healthy young adults, investigate factors associated with RNFL thickness, and report the percentage of outside normal limits (ONL) and borderline (BL) RNFL thickness classifications based on the optical coherence tomography (OCT) manufacturer reference database. METHODS: Participants of the Raine Study Generation 2 cohort (aged 18-22 years) underwent spectral domain OCT imaging with an RNFL circle scan. Eyes with inadequate scans or optic nerve pathology were excluded. Linear mixed models were used to analyze associations. RESULTS: Data were available for 1288 participants (mean age, 20.0 years). Mean RNFL thicknesses in right and left eyes, respectively, were global = 100.5 µm, 100.3 µm (P = 0.03); temporal = 73.1 µm, 68.9 µm (P < 0.001); superotemporal = 140.6 µm, 136.3 µm (P < 0.001); superonasal = 104.9 µm, 115.1 µm (P < 0.001); nasal = 79.7 µm, 79.1 µm (P = 0.09); inferonasal = 109.8 µm, 111.5 µm (P < 0.001); and inferotemporal = 143.2 µm, 143.6 µm (P = 0.51). Longer axial length was associated with thinner RNFL globally, nasally, inferotemporally, superotemporally, superonasally, and inferonasally, as well as thicker RNFL temporally. The prevalence of ONL and BL classifications was generally higher than the expected rates of 1% and 4%, respectively, in temporal sectors and lower than expected in nasal sectors. The prevalence of global BL classifications was lower than expected (right eye, 2.3%; left eye, 2.6%). CONCLUSIONS: Measured RNFL thickness differs with axial length and between right and left eyes. More reference data are needed to better define the normal limits of RNFL variation in different populations. TRANSLATIONAL RELEVANCE: This study provides an improved understanding of normal variation in RNFL thickness in young adults.
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- 2021
15. Macular Thickness Profile and Its Association With Best-Corrected Visual Acuity in Healthy Young Adults
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Lee, SS-Y, Lingham, G, Alonso-Caneiro, D, Charng, J, Chen, FK, Yazar, S, Mackey, DA, Lee, SS-Y, Lingham, G, Alonso-Caneiro, D, Charng, J, Chen, FK, Yazar, S, and Mackey, DA
- Abstract
PURPOSE: To describe the thickness profiles of the full retinal and outer retinal layers (ORL) at the macula in healthy young adults, and associations with best-corrected visual acuity (BCVA). METHODS: In total, 1604 participants (19-30 years) underwent an eye examination that included measurements of their BCVA, axial length, and autorefraction. The retinal thickness at the foveal pit and at the nine Early Treatment of Diabetic Retinopathy Study macular regions (0.5-mm radius around the fovea, and superior, inferior, temporal, and nasal quadrants of the inner and outer rings of the macula) were obtained using spectral-domain optical coherence tomography imaging. A custom program was used to correct for transverse magnification effects because of different axial lengths. RESULTS: The median full retinal and ORL thicknesses at the central macula were 285 µm and 92 µm. The full retina was thinnest centrally and thickest at the inner macula ring, whereas the ORL was thickest centrally and gradually decreased in thickness with increasing eccentricity. There was no association between axial length and the full retinal or ORL thickness. Increased thicknesses of the full retina at the central macula was associated with better BCVA; however, the effect size was small and not clinically significant. CONCLUSIONS: This article mapped the full retinal and ORL thickness profile in a population-based sample of young healthy adults. TRANSLATIONAL RELEVANCE: Thickness values presented in this article could be used as a normative reference for future studies on young adults and in clinical practice.
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- 2021
16. Change in the prevalence of myopia in Australian middle-aged adults across 20 years
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Mackey, DA, Lingham, G, Lee, SS-Y, Hunter, M, Wood, D, Hewitt, AW, Mitchell, P, Taylor, HR, Hammond, CJ, Yazar, S, Mackey, DA, Lingham, G, Lee, SS-Y, Hunter, M, Wood, D, Hewitt, AW, Mitchell, P, Taylor, HR, Hammond, CJ, and Yazar, S
- Abstract
BACKGROUND: The prevalence of myopia is increasing globally including in Europe and parts of Asia but Australian data are lacking. This study aim described the change in myopia prevalence in middle-aged Australian adults over approximately a 20-year period. METHODS: Two contemporary Western Australian studies (conducted in mid-late 2010s): the coastal-regional Busselton Healthy Ageing Study (BHAS) and the urban Gen1 of the Raine Study (G1RS) were compared to two earlier studies (early-mid 1990s) in Australia: the urban Blue Mountains Eye Study (BMES) and urban/regional Melbourne Visual Impairment Project (MVIP). Refractive error was measured by autorefraction, vertometry, or subjective refraction. Participants (49-70 years) of European descent without self-reported/diagnosed cataract, corneal disease, or refractive or corneal surgery were included. RESULTS: After exclusions, data were available from 2217, 1760, 700, 2987 and 756 participants from BMES, urban MVIP, regional MVIP, BHAS, and G1RS, respectively. The mean age ranged from 57.1 ± 4.6 years in the G1RS to 60.1 ± 6.0 years in the BMES; 44-48% of participants were male. When stratified by location, the contemporary urban G1RS cohort had a higher age-standardised myopia prevalence than the urban MVIP and BMES cohorts (29.2%, 16.4%, and 23.9%, p < 0.001). The contemporary coastal-regional BHAS had a higher age-standardised myopia prevalence than the regional MVIP cohort (19.4% vs. 13.8%, p = 0.001). CONCLUSIONS: We report an increase in myopia prevalence in older adults in Australia born after World War ll compared to cohorts born before, accounting for urban/regional location. The prevalence of myopia remains relatively low in middle-aged Australian adults.
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- 2021
17. Time spent outdoors through childhood and adolescence - assessed by 25-hydroxyvitamin D concentration - and risk of myopia at 20 years
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Lingham, G, Mackey, DA, Zhu, K, Lucas, RM, Black, LJ, Oddy, WH, Holt, P, Walsh, JP, Sanfilippo, PG, Chan She Ping-Delfos, W, Yazar, S, Lingham, G, Mackey, DA, Zhu, K, Lucas, RM, Black, LJ, Oddy, WH, Holt, P, Walsh, JP, Sanfilippo, PG, Chan She Ping-Delfos, W, and Yazar, S
- Abstract
PURPOSE: To investigate the relationship between time spent outdoors, at particular ages in childhood and adolescence, and myopia status in young adulthood using serum 25-hydroxyvitamin D [25(OH)D] concentration as a biomarker of time spent outdoors. METHODS: Participants of the Raine Study Generation 2 cohort had 25(OH)D concentrations measured at the 6-, 14-, 17- and 20-year follow-ups. Participants underwent cycloplegic autorefraction at age 20 years, and myopia was defined as a mean spherical equivalent -0.50 dioptres or more myopic. Logistic regression was used to analyse the association between risk of myopia at age 20 years and age-specific 25(OH)D concentrations. Linear mixed-effects models were used to analyse trajectory of 25(OH)D concentrations from 6 to 20 years. RESULTS: After adjusting for sex, race, parental myopia, body mass index and studying status, myopia at 20 years was associated with lower 25(OH)D concentration at 20 years (per 10 nmol/L decrease, odds ratio (aOR)=1.10, 95% CI: 1.02, 1.18) and a low vitamin D status [25(OH)D < 50 nmol/L] at 17 years (aOR = 1.71, 95% CI: 1.06, 2.76) and 20 years (aOR = 1.71, 95% CI: 1.14, 2.56), compared to those without low vitamin D status. There were no associations between 25(OH)D at younger ages and myopia. Individuals who were myopic at 20 years had a 25(OH)D concentration trajectory that declined, relative to non-myopic peers, with increasing age. Differences in 25(OH)D trajectory between individuals with and without myopia were greater among non-Caucasians compared to Caucasians. CONCLUSIONS: Myopia in young adulthood was most strongly associated with recent 25(OH)D concentrations, a marker of time spent outdoors.
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- 2021
18. Rationale and protocol for the 7- And 8-year longitudinal assessments of eye health in a cohort of young adults in the Raine Study
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Lee, SSY, Lingham, G, Yazar, S ; https://orcid.org/0000-0003-0994-6196, Sanfilippo, PG, Charng, J, Chen, FK, Hewitt, AW, Ng, F, Hammond, C, Straker, LM, Eastwood, PR, MacGregor, S, Rose, KA, Lucas, RM, Guggenheim, JA, Saw, SM, Coroneo, MT ; https://orcid.org/0000-0002-3061-2011, He, M, MacKey, DA, Lee, SSY, Lingham, G, Yazar, S ; https://orcid.org/0000-0003-0994-6196, Sanfilippo, PG, Charng, J, Chen, FK, Hewitt, AW, Ng, F, Hammond, C, Straker, LM, Eastwood, PR, MacGregor, S, Rose, KA, Lucas, RM, Guggenheim, JA, Saw, SM, Coroneo, MT ; https://orcid.org/0000-0002-3061-2011, He, M, and MacKey, DA
- Abstract
Introduction Eye diseases and visual impairment more commonly affect elderly adults, thus, the majority of ophthalmic cohort studies have focused on older adults. Cohort studies on the ocular health of younger adults, on the other hand, have been few. The Raine Study is a longitudinal study that has been following a cohort since their birth in 1989-1991. As part of the 20-year follow-up of the Raine Study, participants underwent a comprehensive eye examination. As part of the 27- and 28-year follow-ups, eye assessments are being conducted and the data collected will be compared with those of the 20-year follow-up. This will provide an estimate of population incidence and updated prevalence of ocular conditions such as myopia and keratoconus, as well as longitudinal change in ocular parameters in young Australian adults. Additionally, the data will allow exploration of the environmental, health and genetic factors underlying inter-subject differential long-term ocular changes. Methods and analysis Participants are being contacted via telephone, email and/or social media and invited to participate in the eye examination. At the 27-year follow-up, participants completed a follow-up eye screening, which assessed visual acuity, autorefraction, ocular biometry and ocular sun exposure. Currently, at the 28-year follow-up, a comprehensive eye examination is being conducted which, in addition to all the eye tests performed at the 27-year follow-up visit, includes tonometry, optical coherence tomography, funduscopy and anterior segment topography, among others. Outcome measures include the incidence of refractive error and pterygium, an updated prevalence of these conditions, and the 8-year change in ocular parameters. Ethics and dissemination The Raine Study is registered in the Australian New Zealand Clinical Trials Registry. The Gen2 20-year, 27-year and 28-year follow-ups are approved by the Human Research Ethics Committee of the University of Western Australia. Findings
- Published
- 2020
19. Re-engaging an inactive cohort of young adults: evaluating recruitment for the Kidskin Young Adult Myopia Study
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Lingham, G, Mackey, DA, Seed, N, Ryan, L, Milne, E, Lucas, RM, Franchina, M, Lee, SS-Y, Yazar, S, Lingham, G, Mackey, DA, Seed, N, Ryan, L, Milne, E, Lucas, RM, Franchina, M, Lee, SS-Y, and Yazar, S
- Abstract
BACKGROUND: Recent changes in communication technologies, including increased reliance on mobile phones and the internet, may present challenges and/or opportunities to re-engaging inactive study cohorts. We evaluate our ability to recruit participants for the Kidskin Young Adult Myopia Study (KYAMS), a follow-up of the Kidskin Study. METHODS: KYAMS participants were recruited from the Kidskin Study, a sun exposure-intervention study for 5-6 year-olds running from 1995 to 1999 with most recent follow-up in 2005. From 2015 to 2019, the KYAMS used mail-outs, phone calls and social media to contact Kidskin Study participants. Multivariable logistic regression was used to identify variables associated with successful contact of a Kidskin Study participant or family member and KYAMS participation. RESULTS: Of 1695 eligible participants, 599 (35.5%) participants (or a family member) were contacted and 303 (17.9%) participated in the KYAMS. KYAMS participation was more likely in those who participated in the 2005 follow-up (odds ratio [OR] = 5.09, 95% confidence interval [CI]: 3.67-7.06) and had a mobile phone number on record (OR = 2.25, CI: 1.57-3.23). Of those contacted, participants who were the first point of contact (OR = 4.84, CI: 2.89-8.10) and who were contacted by letter in the first (OR = 6.53, CI: 3.35-12.75) or second (OR = 5.77, CI: 2.85-11.67) round were more likely to participate in the KYAMS, compared to contact by landline phone. CONCLUSIONS: We recruited approximately one-fifth of Kidskin Study participants for the KYAMS. Participants were more likely to participate in the KYAMS if they were contacted directly, rather than through a family member, and if they were contacted by invitation letter. TRIAL REGISTRATION: ACTRN12617000812392.
- Published
- 2020
20. Western Australia Atropine for the Treatment of Myopia (WA-ATOM) study: Rationale, methodology and participant baseline characteristics
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Lee, SSY, Mackey, DA, Lingham, G, Crewe, JM, Chen, FK, Charng, J, Ng, F, Flitcroft, I, Loughman, JJ, Azuara-Blanco, A, Logan, NS, Hammond, CJ, Chia, A, Richards, MD, Truong, TT, Clark, A, Lee, SSY, Mackey, DA, Lingham, G, Crewe, JM, Chen, FK, Charng, J, Ng, F, Flitcroft, I, Loughman, JJ, Azuara-Blanco, A, Logan, NS, Hammond, CJ, Chia, A, Richards, MD, Truong, TT, and Clark, A
- Abstract
IMPORTANCE: Atropine eyedrops are a promising treatment for slowing myopia progression in East Asian children. However, its effects on children in Australia, including those of non-Asian background, have not been well-studied. BACKGROUND: The Western Australia Atropine for the Treatment of Myopia (WA-ATOM) study aims to determine the efficacy and long-term effects of low-dose atropine eyedrops in myopia control. This paper describes the study rationale, methodology and participant baseline characteristics. DESIGN: Single-centre, double-masked, randomized controlled trial. PARTICIPANTS: Children (6-16 years) with spherical equivalent ≤-1.50 D in each eye, astigmatism ≤1.50 D and myopia progression by ≥0.50 D/year. METHODS: Enrolled children were randomly assigned 2:1 to receive 0.01% atropine or placebo eyedrops. Participants are examined every 6 months during first 3 years of the study (2-year treatment phase followed by a 1-year washout phase), and then at a 5-year follow-up (2 years after the end of the washout phase). MAIN OUTCOME MEASURES: Annual progression rate of myopia and axial length, tolerability to eyedrops and incidence and severity of unwanted effects. RESULTS: Out of 311 children who were referred, 242 were suitable for study participation, and 153 were subsequently enrolled. The baseline characteristics of enrolled participants are presented. CONCLUSIONS AND RELEVANCE: Outcomes of the WA-ATOM study will inform on the efficacy, tolerability, safety and long-term effects of low-dose atropine eyedrops in myopia control in Australian children. The impact of ocular sun exposure, iris colour and parental myopia on the efficacy of low-dose atropine will also be assessed.
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- 2020
21. Rationale and protocol for the 7-and 8-year longitudinal assessments of eye health in a cohort of young adults in the Raine Study
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Lee, SS-Y, Lingham, G, Yazar, S, Sanfilippo, PG, Charng, J, Chen, FK, Hewitt, AW, Ng, F, Hammond, C, Straker, LM, Eastwood, PR, MacGregor, S, Rose, KA, Lucas, RM, Guggenheim, JA, Saw, S-M, Coroneo, MT, He, M, Mackey, DA, Lee, SS-Y, Lingham, G, Yazar, S, Sanfilippo, PG, Charng, J, Chen, FK, Hewitt, AW, Ng, F, Hammond, C, Straker, LM, Eastwood, PR, MacGregor, S, Rose, KA, Lucas, RM, Guggenheim, JA, Saw, S-M, Coroneo, MT, He, M, and Mackey, DA
- Abstract
INTRODUCTION: Eye diseases and visual impairment more commonly affect elderly adults, thus, the majority of ophthalmic cohort studies have focused on older adults. Cohort studies on the ocular health of younger adults, on the other hand, have been few. The Raine Study is a longitudinal study that has been following a cohort since their birth in 1989-1991. As part of the 20-year follow-up of the Raine Study, participants underwent a comprehensive eye examination. As part of the 27- and 28-year follow-ups, eye assessments are being conducted and the data collected will be compared with those of the 20-year follow-up. This will provide an estimate of population incidence and updated prevalence of ocular conditions such as myopia and keratoconus, as well as longitudinal change in ocular parameters in young Australian adults. Additionally, the data will allow exploration of the environmental, health and genetic factors underlying inter-subject differential long-term ocular changes. METHODS AND ANALYSIS: Participants are being contacted via telephone, email and/or social media and invited to participate in the eye examination. At the 27-year follow-up, participants completed a follow-up eye screening, which assessed visual acuity, autorefraction, ocular biometry and ocular sun exposure. Currently, at the 28-year follow-up, a comprehensive eye examination is being conducted which, in addition to all the eye tests performed at the 27-year follow-up visit, includes tonometry, optical coherence tomography, funduscopy and anterior segment topography, among others. Outcome measures include the incidence of refractive error and pterygium, an updated prevalence of these conditions, and the 8-year change in ocular parameters. ETHICS AND DISSEMINATION: The Raine Study is registered in the Australian New Zealand Clinical Trials Registry. The Gen2 20-year, 27-year and 28-year follow-ups are approved by the Human Research Ethics Committee of the University of Western Australia. Findin
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- 2020
22. Rationale and protocol for the 7- And 8-year longitudinal assessments of eye health in a cohort of young adults in the Raine Study
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Lee, S.S.Y., Lingham, G., Yazar, S., Sanfilippo, P.G., Charng, J., Chen, F.K., Hewitt, A.W., Ng, F., Hammond, C., Straker, Leon, Eastwood, Peter, MacGregor, S., Rose, K.A., Lucas, R.M., Guggenheim, J.A., Saw, S.M., Coroneo, M.T., He, M., MacKey, D.A., Lee, S.S.Y., Lingham, G., Yazar, S., Sanfilippo, P.G., Charng, J., Chen, F.K., Hewitt, A.W., Ng, F., Hammond, C., Straker, Leon, Eastwood, Peter, MacGregor, S., Rose, K.A., Lucas, R.M., Guggenheim, J.A., Saw, S.M., Coroneo, M.T., He, M., and MacKey, D.A.
- Abstract
Introduction Eye diseases and visual impairment more commonly affect elderly adults, thus, the majority of ophthalmic cohort studies have focused on older adults. Cohort studies on the ocular health of younger adults, on the other hand, have been few. The Raine Study is a longitudinal study that has been following a cohort since their birth in 1989-1991. As part of the 20-year follow-up of the Raine Study, participants underwent a comprehensive eye examination. As part of the 27- and 28-year follow-ups, eye assessments are being conducted and the data collected will be compared with those of the 20-year follow-up. This will provide an estimate of population incidence and updated prevalence of ocular conditions such as myopia and keratoconus, as well as longitudinal change in ocular parameters in young Australian adults. Additionally, the data will allow exploration of the environmental, health and genetic factors underlying inter-subject differential long-term ocular changes. Methods and analysis Participants are being contacted via telephone, email and/or social media and invited to participate in the eye examination. At the 27-year follow-up, participants completed a follow-up eye screening, which assessed visual acuity, autorefraction, ocular biometry and ocular sun exposure. Currently, at the 28-year follow-up, a comprehensive eye examination is being conducted which, in addition to all the eye tests performed at the 27-year follow-up visit, includes tonometry, optical coherence tomography, funduscopy and anterior segment topography, among others. Outcome measures include the incidence of refractive error and pterygium, an updated prevalence of these conditions, and the 8-year change in ocular parameters. Ethics and dissemination The Raine Study is registered in the Australian New Zealand Clinical Trials Registry. The Gen2 20-year, 27-year and 28-year follow-ups are approved by the Human Research Ethics Committee of the University of Western Australia. Findings
- Published
- 2020
23. Investigating the long-term impact of a childhood sun-exposure intervention, with a focus on eye health: protocol for the Kidskin-Young Adult Myopia Study
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Lingham, G, Milne, E, Cross, D, English, DR, Johnston, RS, Lucas, RM, Yazar, S, Mackey, DA, Lingham, G, Milne, E, Cross, D, English, DR, Johnston, RS, Lucas, RM, Yazar, S, and Mackey, DA
- Abstract
INTRODUCTION: Excessive and insufficient sun exposure during childhood have been linked to serious diseases in later life; for example, insufficient sun exposure during childhood may increase the risk of developing myopia. The Kidskin-Young Adult Myopia Study (K-YAMS) is a follow-up of participants in the Kidskin Study, a non-randomised controlled trial that evaluated the effect of a 4-year educational intervention on sun-protection behaviours among primary school children in the late 1990s. Children who received the Kidskin intervention had lower levels of sun exposure compared with peers in the control group after 2 and 4 years of the intervention, but this was not maintained 2 years after the intervention had ceased. Thus, a follow-up of Kidskin Study participants provides a novel opportunity to investigate the associations between a childhood sun-exposure intervention and potentially related conditions in adulthood. METHODS AND ANALYSIS: The K-YAMS contacts Kidskin Study participants and invites them to participate using a variety of methods, such as prior contact details, the Australian Electoral Roll and social media. Self-reported and objective measures of sun-exposure and sun-protection behaviours are collected as well as a number of eye measurements including cycloplegic autorefraction and ocular biometry. Data will be analysed to investigate a possible association between myopic refractive error and Kidskin intervention group or measured sun exposure. ETHICS AND DISSEMINATION: The K-YAMS is approved by the Human Research Ethics Committee of the University of Western Australia (RA/4/1/6807). Findings will be disseminated via scientific journals and conferences. TRIAL REGISTRATION NUMBER: ACTRN12616000812392; Pre-results.
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- 2018
24. Investigating the long-term impact of a childhood sun-exposure intervention, with a focus on eye health: protocol for the Kidskin-Young Adult Myopia Study
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Lingham, G., Milne, E., Cross, D., English, D., Johnston, Robyn, Lucas, R., Yazar, S., Mackey, D., Lingham, G., Milne, E., Cross, D., English, D., Johnston, Robyn, Lucas, R., Yazar, S., and Mackey, D.
- Abstract
Introduction: Excessive and insufficient sun exposure during childhood have been linked to serious diseases in later life; for example, insufficient sun exposure during childhood may increase the risk of developing myopia. The Kidskin-Young Adult Myopia Study (K-YAMS) is a follow-up of participants in the Kidskin Study, a non-randomised controlled trial that evaluated the effect of a 4-year educational intervention on sun-protection behaviours among primary school children in the late 1990s. Children who received the Kidskin intervention had lower levels of sun exposure compared with peers in the control group after 2 and 4 years of the intervention, but this was not maintained 2 years after the intervention had ceased. Thus, a follow-up of Kidskin Study participants provides a novel opportunity to investigate the associations between a childhood sun-exposure intervention and potentially related conditions in adulthood. Methods and analysis: The K-YAMS contacts Kidskin Study participants and invites them to participate using a variety of methods, such as prior contact details, the Australian Electoral Roll and social media. Self-reported and objective measures of sun-exposure and sun-protection behaviours are collected as well as a number of eye measurements including cycloplegic autorefraction and ocular biometry. Data will be analysed to investigate a possible association between myopic refractive error and Kidskin intervention group or measured sun exposure. Ethics and dissemination: The K-YAMS is approved by the Human Research Ethics Committee of the University of Western Australia (RA/4/1/6807). Findings will be disseminated via scientific journals and conferences. Trial registration number: ACTRN12616000812392; Pre-results.
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- 2018
25. Knowledge transfer in transnational programmes: opportunities and challenges for the Pacific region
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Dakuidreketi, M, Ishwar Lingham, G, Sutrisno, Agustian, Pillay, Hitendra, Dakuidreketi, M, Ishwar Lingham, G, Sutrisno, Agustian, and Pillay, Hitendra
- Abstract
The globalised world: The current higher education community The last decade has seen rapid changes in the landscape of higher education (HE) throughout the world, largely as a product of globalisation. A major effect has been to propel the interconnectedness between nations and people across the globe (Scholte, 2005). The use of information and communication technology (ICT) has diminished the distance between countries. The world’s economies are becoming more integrated and interrelated through neoliberal economic policies, free trade agreements and open access of goods and services beyond national borders, policies promulgated by organisations such as the World Trade Organization and The World Bank (Marginson & Ordorika, 2011; Mok, 2011). As a consequence, universities are operating at global, national and local levels simultaneously. In the Pacific region, new universities are emerging. For example, Fiji now has one regional and two national universities; Samoa has a national university and Solomon Islands has an institute of higher education. These new players add to regional competition as they open opportunities for global partnerships and transnational programmes. Thus, participating at these multiple levels is inevitable, and no university is immune to these changes (Marginson, Kaur & Sawir, 2011a). Universities are now part of the global HE community that cannot be confined within a nation’s borders. Transitional HE programmes are perhaps one of the most evident demonstrations of the interconnectedness of universities across countries in this global era.
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- 2014
26. Efficacy and Safety of Different Atropine Regimens for the Treatment of Myopia in Children: Three-Year Results of the MOSAIC Randomized Clinical Trial.
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Loughman J, Lingham G, Nkansah EK, Kobia-Acquah E, and Flitcroft DI
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- Humans, Female, Male, Child, Double-Blind Method, Treatment Outcome, Adolescent, Disease Progression, Visual Acuity physiology, Follow-Up Studies, Axial Length, Eye, Dose-Response Relationship, Drug, Atropine administration & dosage, Mydriatics administration & dosage, Mydriatics adverse effects, Ophthalmic Solutions, Refraction, Ocular physiology, Myopia drug therapy, Myopia physiopathology
- Abstract
Importance: Additional data are required regarding atropine treatment regimens for control of myopia progression., Objective: To investigate the efficacy and safety of different atropine regimens for myopia in children., Design, Setting, and Participants: This was a secondary analysis of the 3-year results of the 24-Month Myopia Outcome Study of Atropine in Children (MOSAIC) trial, called the MOSAIC2 trial. The MOSAIC trial was an investigator-led, double-masked, randomized clinical trial of different atropine concentrations and regimens. The MOSAIC2 study took place at the Centre for Eye Research Ireland, in Dublin, Ireland, and included children and adolescents with myopia from the MOSAIC trial. Data analysis was conducted from November 2023 to February 2024., Interventions: Participants were randomly assigned to the following cohorts: group 1, nightly placebo for 2 years then 0.05% atropine eye drops for 1 year and group 2, nightly 0.01% atropine eye drops for 2 years then rerandomization to placebo nightly, tapering placebo, or tapering of 0.01% atropine eye drops for 1 year., Main Outcomes and Measures: Observed changes in cycloplegic spherical equivalent refraction and axial length from month 24, or baseline, to month 36., Results: A total of 199 children with myopia (mean [SD] age, 13.9 [2.4] years; 121 female [60.8%]) of the 250 children and adolescents from the MOSAIC trial were included in the MOSAIC2 trial analysis. Of 83 participants assigned to group 1, 66 (79.5%) reconsented to year 3, and 61 (73.5%) completed the trial. Of 167 participants assigned to group 2, 133 (79.6%) continued to year 3, and 121 (72.5%) completed the trial (0.01% atropine, then nightly placebo: n = 31 and n = 29 [93.5%]; 0.01% atropine, then tapering placebo: n = 29 and n = 25 [86.2%]; 0.01% atropine then tapering 0.01% atropine: n = 73 and n = 67 [91.8%], respectively). Compared with the group taking placebo then 0.05% atropine, the combined atropine then placebo groups had more spherical equivalent progression (adjusted difference, -0.13 diopters [D]; 95% CI, -0.22 to -0.04 D; P = .01) and axial elongation (adjusted difference, 0.06 mm; 95% CI, 0.02-0.09 mm; P = .008), and the group taking 0.01% atropine then tapering 0.01% atropine had more axial elongation (adjusted difference, 0.04 mm; 95% CI, 0.009-0.07 mm; P = .04). In the group taking placebo then 0.05% atropine, 15% (n = 10) and 8% (n = 5) reported blurred near vision and photophobia, respectively, during year 3, compared with 3% (n = 2) and 0%, respectively, in the group taking 0.01% atropine then tapering 0.01% atropine, and no reports in both placebo groups., Conclusions and Relevance: Despite more adverse events, participants using 0.05% atropine during year 3 had no differences in treatment completion rates and exhibited 0.13-D less myopia progression and 0.06-mm less axial elongation, compared with participants using placebo, supporting consideration of treatment as given to the group taking 0.05% atropine in this European population., Trial Registration: isrctn.org Identifier: ISRCTN36732601.
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- 2025
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27. Two-year changes of macular choroidal thickness in response to 0.01% atropine eye drops: Results from the myopia outcome study of atropine in children (MOSAIC) clinical trial.
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Kobia-Acquah E, Lingham G, Flitcroft DI, and Loughman J
- Abstract
Purpose: To investigate 2-year changes in macular choroidal thickness (ChT) in children receiving 0.01% atropine eyedrops and its relationship with spherical equivalent refraction (SER) progression and axial length (AL) elongation., Methods: A total of 250 myopic children aged 6-16 years (167%-0.01% atropine, 83-placebo) were enrolled in the MOSAIC (ISRCTN36732601) clinical trial. Participants with complete 2-year ChT (Topcon Triton Swept-Source OCT), SER, and AL data were included in this study. Changes in macular ChT at 2 years and associations with changes in SER and AL elongation were analysed using linear mixed models., Results: A total of 187 children (126%-0.01% atropine, 61-placebo) were included in the analysis. Choroidal thickness over 2 years was stable in the 0.01% atropine compared with placebo group, which exhibited consistent thinning in subfoveal (mean ± SE: 0.49 ± 2.22 μm vs. -9.46 ± 2.69 μm; p = 0.034), parafoveal (1.40 ± 1.73 μm vs. -8.11 ± 2.08 μm; p = 0.002), and perifoveal (0.80 ± 1.25 vs. -6.17 ± 1.69; p = 0.002) macular subfields. Choroidal thickening was observed in participants with slower axial eye growth and myopia progression, regardless of their treatment group. Mediation analysis indicated that atropine 0.01% had a significant effect on ChT, with 68.3% of the effect being direct and 31.7% mediated through axial length changes. For SER, the direct effect on ChT was 80%, with the remaining 20% mediated by SER changes., Conclusions: Myopic participants treated with 0.01% atropine exhibited stable ChT over 2 years, whereas the placebo group showed consistent thinning. The effect of atropine 0.01% on ChT was only partially explained by axial length and SER changes, indicating a direct effect of atropine treatment on the choroid., (© 2024 The Author(s). Acta Ophthalmologica published by John Wiley & Sons Ltd on behalf of Acta Ophthalmologica Scandinavica Foundation.)
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- 2024
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28. Correction: The long and short of it: a comprehensive assessment of axial length estimation in myopic eyes from ocular and demographic variables.
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Lingham G, Loughman J, Panah DS, Harrington S, Saunders KJ, Ying GS, Cui H, Kobia-Acquah E, and Flitcroft DI
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- 2024
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29. Uncovering genetic loci and biological pathways associated with age-related cataracts through GWAS meta-analysis.
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Diaz-Torres S, Lee SS, García-Marín LM, Campos AI, Lingham G, Ong JS, Mackey DA, Burdon KP, Hunter M, Dong X, MacGregor S, Gharahkhani P, and Rentería ME
- Subjects
- Humans, Ultraviolet Rays adverse effects, Polymorphism, Single Nucleotide, Diabetes Mellitus, Type 1 genetics, Aging genetics, Cataract genetics, Genome-Wide Association Study, Genetic Loci, Genetic Predisposition to Disease
- Abstract
Age-related cataracts is a highly prevalent eye disorder that results in the clouding of the crystalline lens and is one of the leading causes of visual impairment and blindness. The disease is influenced by multiple factors including genetics, prolonged exposure to ultraviolet radiation, and a history of diabetes. However, the extent to which each of these factors contributes to the development of cataracts remains unclear. Our study identified 101 independent genome-wide significant loci, 57 of which are novel. We identified multiple genes and biological pathways associated with the cataracts, including four drug-gene interactions. Our results suggest a causal association between type 1 diabetes and cataracts. Also, we highlighted a surrogate measure of UV light exposure as a marker of cataract risk in adults., (© 2024. The Author(s).)
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- 2024
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30. Polygenic Prediction of Keratoconus and its Measures: Cross-Sectional and Longitudinal Analyses in Community-Based Young Adults.
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Lee SS, Diaz-Torres S, He W, Yazar S, Chan E, Chong EW, Gharahkhani P, Macgregor S, Lingham G, and Mackey DA
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- Humans, Cross-Sectional Studies, Female, Male, Adolescent, Young Adult, Adult, Prospective Studies, Risk Factors, Prevalence, Follow-Up Studies, Multifactorial Inheritance, Incidence, Disease Progression, Keratoconus genetics, Keratoconus diagnosis, Keratoconus epidemiology, Corneal Topography
- Abstract
Purpose: This study evaluates the performance of a multitrait polygenic risk score (PRS) in an independent cohort to predict incident or progression of keratoconus., Design: Prospective cross-sectional and cohort study METHODS: Setting: Single-center; Study population: 1478 community-based young adults (18-30 years; 51% female), including 609 (52% female) who returned for an 8-year follow-up; Observation procedures: Scheimpflug imaging (Pentacam, Oculus), genotyping and development of a multitrait PRS previously validated to predict keratoconus in older adults.; Main outcome measure: Belin/Ambrόsio enhanced ectasia display (BAD-D) score and keratoconus, defined as BAD-D ≥2.6, were each analyzed against the PRS using linear and logistic regression, respectively., Results: Prevalence of keratoconus was 2.5% (95% confidence interval [CI] = 1.9-3.6) in the cross-sectional cohort. Each z-score increase in PRS was associated with worse BAD-D z-score by 0.13 (95%CI = 0.08-0.18) and 1.6 increased odds of keratoconus. The 8-year keratoconus incidence was 2.6% (95%CI = 1.3-4.0). Participants in the highest PRS decile were more likely to have incident keratoconus compared to the rest of the cohort (odds ratio = 3.85, 95%CI = 1.21-12.22). For each z-score increase in PRS, 8-year change in BAD-D z-score worsened by 0.11 (95%CI = 0.04-0.17)., Conclusions: A PRS for keratoconus could be useful in predicting incident keratoconus and progression, demonstrating its potential utility in clinical settings to identify patients at high risk of postsurgery ectasia or those who may benefit most from keratoconus intervention., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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31. Acute large bowel obstruction.
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Lingham G, Okocha M, and Griffiths B
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- Humans, Acute Disease, Intestinal Obstruction surgery, Intestinal Obstruction etiology
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- 2024
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32. Choroidal Changes During and After Discontinuing Long-Term 0.01% Atropine Treatment for Myopia Control.
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Lee SS, Lingham G, Clark A, Read SA, Alonso-Caneiro D, and Mackey DA
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- Humans, Male, Female, Child, Adolescent, Myopia drug therapy, Myopia physiopathology, Double-Blind Method, Follow-Up Studies, Refraction, Ocular physiology, Myopia, Degenerative drug therapy, Myopia, Degenerative physiopathology, Visual Acuity, Atropine administration & dosage, Tomography, Optical Coherence, Choroid pathology, Choroid diagnostic imaging, Choroid drug effects, Ophthalmic Solutions, Mydriatics administration & dosage
- Abstract
Purpose: Few studies have explored choroidal changes after cessation of myopia control. This study evaluated the choroidal thickness (ChT) and choroidal vascularity index (CVI) during and after discontinuing long-term low-concentration atropine eye drops use for myopia control., Methods: Children with progressive myopia (6-16 years; n = 153) were randomized to receive 0.01% atropine eye drops or a placebo (2:1 ratio) instilled daily over 2 years, followed by a 1-year washout (no eye drop use). Optical coherence tomography imaging of the choroid was conducted at the baseline, 2-year (end of treatment phase), and 3-year (end of washout phase) visits. The main outcome measure was the subfoveal ChT. Secondary measures include the CVI., Results: During the treatment phase, the subfoveal choroids in both treatment and control groups thickened by 12-14 µm (group difference P = 0.56). During the washout phase, the subfoveal choroids in the placebo group continued to thicken by 6.6 µm (95% confidence interval [CI] = 1.7 to 11.6), but those in the atropine group did not change (estimate = -0.04 µm; 95% CI = -3.2 to 3.1). Participants with good axial eye growth control had greater choroidal thickening than the fast-progressors during the treatment phase regardless of the treatment group (P < 0.001), but choroidal thickening in the atropine group's fast-progressors was not sustained after stopping eye drops. CVI decreased in both groups during the treatment phase, but increased in the placebo group after treatment cessation., Conclusions: On average, compared to placebo, 0.01% atropine eye drop treatment did not cause a differential rate of change in ChT during treatment, but abrupt cessation of long-term 0.01% atropine eye drops may disrupt normal choroidal thickening in children.
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- 2024
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33. Myopia progression following 0.01% atropine cessation in Australian children: Findings from the Western Australia - Atropine for the Treatment of Myopia (WA-ATOM) study.
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Lee SS, Nilagiri VK, Lingham G, Blaszkowska M, Sanfilippo PG, Franchina M, Clark A, and Mackey DA
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- Humans, Male, Female, Child, Double-Blind Method, Myopia drug therapy, Myopia physiopathology, Western Australia, Adolescent, Atropine administration & dosage, Disease Progression, Ophthalmic Solutions, Mydriatics administration & dosage, Refraction, Ocular physiology, Axial Length, Eye
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Background: A rebound in myopia progression following cessation of atropine eyedrops has been reported, yet there is limited data on the effects of stopping 0.01% atropine compared to placebo control. This study tested the hypothesis that there is minimal rebound myopia progression after cessation of 0.01% atropine eyedrops, compared to a placebo., Methods: Children with myopia (n = 153) were randomised to receive 0.01% atropine eyedrops or a placebo (2:1 ratio) daily at bedtime during the 2-year treatment phase of the study. In the third year (wash-out phase), all participants ceased eyedrop instillation. Participants underwent an eye examination every 6 months, including measurements of spherical equivalent (SphE) after cycloplegia and axial length (AL). Changes in the SphE and AL during the wash-out phase and throughout the 3 years of the study (treatment + wash-out phase) were compared between the treatment and control groups., Results: During the 1-year wash-out phase, SphE and AL progressed by -0.41D (95% CI = -0.33 to -0.22) and +0.20 mm (95% CI = -0.46 to -0.36) in the treatment group compared to -0.28D (95% CI = 0.11 to 0.16) and +0.13 mm (95% CI = 0.18 to 0.21) in the control group. Progression in the treatment group was significantly faster than in the control group (p = 0.016 for SphE and <0.001 for AL). Over the 3-year study period, the cumulative myopia progression was similar between the atropine and the control groups., Conclusions: These findings showed evidence of rapid myopia progression following cessation of 0.01% atropine. Further investigations are warranted to ascertain the long-term effects of atropine eyedrops., (© 2024 The Authors. Clinical & Experimental Ophthalmology published by John Wiley & Sons Australia, Ltd on behalf of Royal Australian and New Zealand College of Ophthalmologists.)
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- 2024
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34. Impact of coronavirus disease 2019 restrictions on the efficacy of atropine 0.01% eyedrops for myopia control - Findings from the Western Australia Atropine for the Treatment of Myopia study.
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Lee SS, Lingham G, and Mackey DA
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This study explored the impact of short-term coronavirus disease 2019 (COVID-19) restrictions on the efficacy of atropine 0.01% eyedrops on myopia control in a multiethnic cohort of Australian children. In the Western Australia Atropine for the Treatment of Myopia study, 104 and 49 children were randomized to receive atropine 0.01% eyedrops and a placebo, respectively. We compared the 1-year myopia progression and axial elongation following the 2-month lockdown in 2020 to the same months in 2019 and 2021, i.e., the 1-year myopia progression up to May 2019-October 2019 (non-COVID-19) versus the 1-year progression up to May 2020-October 2020 (COVID-19 period), and the 1-year progression up to May 2021-October 2021 (non-COVID-19) versus the 1-year progression up to the same months in 2020. After excluding participants who withdrew, completed their treatment phase prior May 2020, or those whose study visits did not fall between May 2020 and October 2020, 65 participants (mean age at baseline = 11.8 ± 2.5 years) were included in the final analysis (49 in the treatment group; 16 in the placebo group). After correcting for age, sex, and ethnicity, there was no significant main effect of the short-term lockdown on the rate of spherical equivalent or axial length change. However, there was a lockdown × treatment interaction effect on the rate of axial elongation ( P = 0.007). This was such that in the treatment group, the 1-year axial elongation was faster during lockdown by 0.056 mm compared to the nonlockdown periods ( P = 0.009), while the rate of axial elongation in those on the placebo eye drops was similar during lockdown and nonlockdown. Our findings suggest that there is a decreased efficacy of low-concentration atropine even with relatively lenient restrictions lasting for a few months., Competing Interests: Dr Lingham is employed by Ocumetra; Dr Mackey consults for Novartis., (Copyright: © 2024 Taiwan J Ophthalmol.)
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- 2024
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35. Approaches for delivery of refractive and optical care services in community and primary care settings.
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Umaefulam V, Safi S, Lingham G, Gordon I, Mueller A, Krishnam NS, Alves Carneiro VL, Yu M, Evans JR, and Keel S
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- Adult, Child, Humans, Community Health Services organization & administration, Delivery of Health Care organization & administration, Eyeglasses, Primary Health Care, Refractive Errors therapy
- Abstract
Background: Uncorrected refractive error is a leading cause of vision impairment which, in most cases, can be managed with the appropriate spectacle correction. In 2021, the World Health Assembly endorsed a global target of a 40-percentage-point increase in effective coverage of refractive error by 2030. To achieve this global target, equitable access to refractive and optical services within community and primary care settings needs to be strengthened. This review will inform the development of technical guidance to support improvements in the testing and correction of refractive error among World Health Organization (WHO) member states., Objectives: To determine the range of approaches for delivery of refractive and optical care services in community and primary care settings, and the methods employed for their evaluation., Search Methods: We searched CENTRAL, MEDLINE, Embase and Global Health databases, grey literature, and annual reports and websites of relevant organizations involved in eye-care delivery from January 2002 to November 2022 to identify approaches for refractive and optical service delivery., Selection Criteria: We included observational and interventional studies, reviews, and reports from relevant organizations related to delivering refractive services and optical services for preschool and school-aged children and adults in community and primary care settings published between January 2002 and November 2022. We searched for studies and reports published within the last 20 years because vision impairment due to uncorrected refractive error has only recently become a public health and eye health priority, therefore we did not expect to find much relevant literature until after 2002., Data Collection and Analysis: Two review authors screened titles, abstracts and full texts, and extracted data. We resolved any discrepancies through discussion. We synthesized data, and presented results as tables, figures, and case studies. This project was led by the World Health Organization (WHO) Vision and Eye Care Programme., Main Results: We identified 175 studies from searches of databases and grey literature, 146 records from company reports, and 81 records from website searches of relevant organizations that matched our inclusion criteria. Delivery approaches for refractive and optical services in community care included school-based, pharmacy, and outreach models, whereas primary care approaches comprised vision centre, health centre, and a combination of vision or health centre and door-to-door delivery. In community care, school-based and outreach approaches were predominant, while in primary care, a vision-centre approach was mainly used. In the WHO African region, the school-based and outreach approaches were mainly reported while, in the Americas, the outreach approach was mostly used. Very few approaches for service delivery were reported in the WHO Eastern Mediterranean region. Prominent gaps exist in the evaluation of the approaches, and few studies attempted to evaluate the approaches for delivery of refractive and optical care services., Authors' Conclusions: We comprehensively describe a range of approaches for delivery of refractive and optical services in community and primary care. Further evaluation of their effectiveness will better inform the application of these service-delivery approaches. The study outcomes will help guide WHO member states in strengthening refractive and optical services at community and primary care levels., Funding: This scoping review was supported by the Vision and Eye care Programme, World Health Organization and ATscale Global Partnership., Registration: The protocol of this scoping review was published in the Open Source Framework., (Copyright © 2024 The Authors. Cochrane Database of Systematic Reviews published by John Wiley & Sons, Ltd. on behalf of The Cochrane Collaboration.)
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- 2024
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36. Myopia outcome study of atropine in children: Two-year result of daily 0.01% atropine in a European population.
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Loughman J, Kobia-Acquah E, Lingham G, Butler J, Loskutova E, Mackey DA, Lee SSY, and Flitcroft DI
- Subjects
- Child, Humans, Atropine, Axial Length, Eye, Disease Progression, Ophthalmic Solutions, Refraction, Ocular, Treatment Outcome, Adolescent, COVID-19 epidemiology, Myopia diagnosis, Myopia drug therapy, Myopia epidemiology
- Abstract
Purpose: The Myopia Outcome Study of Atropine in Children (MOSAIC) is an investigator-led, double-masked, randomized controlled trial investigating the efficacy and safety of 0.01% atropine eye drops for managing myopia progression in a predominantly White, European population., Methods: Children aged 6-16 years with myopia were randomly allocated 2:1 to nightly 0.01% atropine or placebo eye drops in both eyes for 2 years. The primary outcome was cycloplegic spherical equivalent (SE) progression at 24 months. Secondary outcomes included axial length (AL) change, safety and acceptability. Linear mixed models with random intercepts were used for statistical analyses., Results: Of 250 participants enrolled, 204 (81.6%) completed the 24-month visit (136 (81.4%) treatment, 68 (81.9%) placebo). Baseline characteristics, drop-out and adverse event rates were similar between treatment and control groups. At 24 months, SE change was not significantly different between 0.01% atropine and placebo groups (effect = 0.10 D, p = 0.07), but AL growth was lower in the 0.01% atropine group, compared to the placebo group (-0.07 mm, p = 0.007). Significant treatment effects on SE (0.14 D, p = 0.049) and AL (-0.11 mm, p = 0.002) were observed in children of White, but not non-White (SE = 0.05 D, p = 0.89; AL = 0.008 mm, p = 0.93), ethnicity at 24 months. A larger treatment effect was observed in subjects least affected by COVID-19 restrictions (SE difference = 0.37 D, p = 0.005; AL difference = -0.17 mm, p = 0.001)., Conclusions: Atropine 0.01% was safe, well-tolerated and effective in slowing axial elongation in this European population. Treatment efficacy varied by ethnicity and eye colour, and potentially by degree of COVID-19 public health restriction exposure during trial participation., (© 2023 The Authors. Acta Ophthalmologica published by John Wiley & Sons Ltd on behalf of Acta Ophthalmologica Scandinavica Foundation.)
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- 2024
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37. The long and short of it: a comprehensive assessment of axial length estimation in myopic eyes from ocular and demographic variables.
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Lingham G, Loughman J, Panah DS, Harrington S, Saunders KJ, Ying GS, Cui H, Kobia-Acquah E, and Flitcroft DI
- Subjects
- Humans, Male, Female, Adolescent, Child, ROC Curve, Biometry methods, Young Adult, Lens, Crystalline physiopathology, Lens, Crystalline diagnostic imaging, Lens, Crystalline pathology, Linear Models, Cornea pathology, Cornea diagnostic imaging, Cornea physiopathology, Myopia physiopathology, Myopia diagnosis, Axial Length, Eye pathology, Axial Length, Eye diagnostic imaging, Refraction, Ocular physiology
- Abstract
Background/objectives: Axial length, a key measurement in myopia management, is not accessible in many settings. We aimed to develop and assess machine learning models to estimate the axial length of young myopic eyes., Subjects/methods: Linear regression, symbolic regression, gradient boosting and multilayer perceptron models were developed using age, sex, cycloplegic spherical equivalent refraction (SER) and corneal curvature. Training data were from 8135 (28% myopic) children and adolescents from Ireland, Northern Ireland and China. Model performance was tested on an additional 300 myopic individuals using traditional metrics alongside the estimated axial length vs age relationship. Linear regression and receiver operator characteristics (ROC) curves were used for statistical analysis. The contribution of the effective crystalline lens power to error in axial length estimation was calculated to define the latter's physiological limits., Results: Axial length estimation models were applicable across all testing regions (p ≥ 0.96 for training by testing region interaction). The linear regression model performed best based on agreement metrics (mean absolute error [MAE] = 0.31 mm, coefficient of repeatability = 0.79 mm) and a smooth, monotonic estimated axial length vs age relationship. This model was better at identifying high-risk eyes (axial length >98th centile) than SER alone (area under the curve 0.89 vs 0.79, respectively). Without knowing lens power, the calculated limits of axial length estimation were 0.30 mm for MAE and 0.75 mm for coefficient of repeatability., Conclusions: In myopic eyes, we demonstrated superior axial length estimation with a linear regression model utilising age, sex and refractive metrics and showed its clinical utility as a risk stratification tool., (© 2024. The Author(s), under exclusive licence to The Royal College of Ophthalmologists.)
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- 2024
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38. Short-term effects of cyclopentolate and tropicamide eye drops on macular choroidal thickness in myopic children.
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Kobia-Acquah E, Flitcroft DI, Lingham G, Kerin E, and Loughman J
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- Child, Humans, Atropine, Cyclopentolate, Mydriatics, Ophthalmic Solutions, Tropicamide pharmacology, Tropicamide therapeutic use, Adolescent, Young Adult, Myopia drug therapy, Presbyopia
- Abstract
Background: To investigate the short-term effects of cyclopentolate and tropicamide eyedrops on choroidal thickness (ChT) in myopic children using placebo or low-dose atropine eyedrops., Methods: The analysis included 242 myopic individuals (7-19 years) enrolled in two randomised placebo-controlled clinical trials of low-dose atropine eyedrops. Cycloplegia was induced using either one drop of 1% cyclopentolate (n = 161), two drops of 1% cyclopentolate (n = 32) or two drops of 1% tropicamide (n = 49). ChT measurements were taken using swept-source optical coherence tomography before and 30 min after administering the cycloplegic eye drops. A subset of 51 participants underwent test-retest measurements prior to cycloplegia., Results: Mean changes in subfoveal ChT after two drops of tropicamide and one and two drops of cyclopentolate were -2.5 μm (p = 0.10), -4.3 μm (p < 0.001) and -9.6 μm (p < 0.001), respectively. Subfoveal ChT changes after one and two drops of cyclopentolate were significantly greater than the test-retest changes (test-retest mean change: -3.1 μm; p < 0.05), while the tropicamide group was not significantly different (p = 0.64). Choroidal thinning post-cyclopentolate was not significantly different between atropine and placebo treatment groups (p > 0.05 for all macular locations). The coefficient of repeatability (CoR) in the tropicamide group (range: 8.2-14.4 μm) was similar to test-retest (range: 7.5-12.2 μm), whereas greater CoR values were observed in the cyclopentolate groups (one drop: range: 10.8-15.3 μm; two drops: range: 12.2-24.6 μm)., Conclusions: Cyclopentolate eye drops caused dose-dependent choroidal thinning and increased variation in pre- to post-cycloplegia measurements compared with test-retest variability, whereas tropicamide did not. These findings have practical implications for ChT measurements when cyclopentolate is used, particularly for successive measurements., (© 2023 The Authors. Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.)
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- 2024
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39. Myopia progression patterns among paediatric patients in a clinical setting.
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Moore M, Lingham G, Flitcroft DI, and Loughman J
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- Adolescent, Child, Female, Humans, Disease Progression, Refraction, Ocular, Retrospective Studies, Treatment Outcome, Vision Tests, Male, Randomized Controlled Trials as Topic, Myopia therapy
- Abstract
Purpose: This retrospective analysis of electronic medical record (EMR) data investigated the natural history of myopic progression in children from optometric practices in Ireland., Methods: The analysis was of myopic patients aged 7-17 with multiple visits and not prescribed myopia control treatment. Sex- and age-specific population centiles for annual myopic progression were derived by fitting a weighted cubic spline to empirical quantiles. These were compared to progression rates derived from control group data obtained from 17 randomised clinical trials (RCTs) for myopia. Linear mixed models (LMMs) were used to allow comparison of myopia progression rates against outputs from a predictive online calculator. Survival analysis was performed to determine the intervals at which a significant level of myopic progression was predicted to occur., Results: Myopia progression was highest in children aged 7 years (median: -0.67 D/year) and progressively slowed with increasing age (median: -0.18 D/year at age 17). Female sex (p < 0.001), a more myopic SER at baseline (p < 0.001) and younger age (p < 0.001) were all found to be predictive of faster myopic progression. Every RCT exhibited a mean progression higher than the median centile observed in the EMR data, while clinic-based studies more closely matched the median progression rates. The LMM predicted faster myopia progression for patients with higher baseline myopia levels, in keeping with previous studies, which was in contrast to an online calculator that predicted slower myopia progression for patients with higher baseline myopia. Survival analysis indicated that at a recall period of 12 months, myopia will have progressed in between 10% and 70% of children, depending upon age., Conclusions: This study produced progression centiles of untreated myopic children, helping to define the natural history of untreated myopia. This will enable clinicians to better predict both refractive outcomes without treatment and monitor treatment efficacy, particularly in the absence of axial length data., (© 2023 The Authors. Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.)
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- 2024
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40. Changes in Refractive Error During Young Adulthood: The Effects of Longitudinal Screen Time, Ocular Sun Exposure, and Genetic Predisposition.
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Lee SS, Lingham G, Wang CA, Diaz Torres S, Pennell CE, Hysi PG, Hammond CJ, Gharahkhani P, Clark R, Guggenheim JA, and Mackey DA
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- Adult, Humans, Young Adult, Genetic Predisposition to Disease, Screen Time, Sunlight adverse effects, Conjunctiva, Refractive Errors genetics, Myopia genetics
- Abstract
Purpose: Changes in refractive error during young adulthood is common yet risk factors at this age are largely unexplored. This study explored risk factors for these changes, including gene-environmental interactions., Methods: Spherical equivalent refraction (SER) and axial length (AL) for 624 community-based adults were measured at 20 (baseline) and 28 years old. Participants were genotyped and their polygenic scores (PGS) for refractive error calculated. Self-reported screen time (computer, television, and mobile devices) from 20 to 28 years old were collected prospectively and longitudinal trajectories were generated. Past sun exposure was quantified using conjunctival ultraviolet autofluorescence (CUVAF) area., Results: Median change in SER and AL were -0.023 diopters (D)/year (interquartile range [IQR] = -0.062 to -0.008) and +0.01 mm/year (IQR = 0.000 to 0.026), respectively. Sex, baseline myopia, parental myopia, screen time, CUVAF, and PGS were significantly associated with myopic shift. Collectively, these factors accounted for approximately 20% of the variance in refractive error change, with screen time, CUVAF, and PGS each explaining approximately 1% of the variance. Four trajectories for total screen time were found: "consistently low" (n = 148), "consistently high" (n = 250), "consistently very high" (n = 76), and "increasing" (n = 150). Myopic shift was faster in those with "consistently high" or "consistently very high" screen time compared to "consistently-low" (P ≤ 0.031). For each z-score increase in PGS, changes in SER and AL increased by -0.005 D/year and 0.002 mm/year (P ≤ 0.045). Of the three types of screen time, only computer time was associated with myopic shift (P ≤ 0.040). There was no two- or three-way interaction effect between PGS, CUVAF, or screen time (P ≥ 0.26)., Conclusions: Higher total or computer screen time, less sun exposure, and genetic predisposition are each independently associated with greater myopic shifts during young adulthood. Given that these factors explained only a small amount of the variance, there are likely other factors driving refractive error change during young adulthood.
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- 2023
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41. Distribution of Axial Length in Australians of Different Age Groups, Ethnicities, and Refractive Errors.
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Nilagiri VK, Lee SS, Lingham G, Charng J, Yazar S, Hewitt AW, Griffiths LR, Sanfilippo PG, Tsai TH, and Mackey DA
- Subjects
- Adult, Retrospective Studies, Child, Child, Preschool, Humans, Aged, Australasian People, Young Adult, Organ Size, Australia epidemiology, Cross-Sectional Studies, Aged, 80 and over, Adolescent, Middle Aged, Emmetropia, Eye growth & development, Eye pathology, Hyperopia diagnosis, Hyperopia epidemiology, Myopia diagnosis, Myopia epidemiology, Refractive Errors epidemiology
- Abstract
Purpose: Treatments are available to slow myopic axial elongation. Understanding normal axial length (AL) distributions will assist clinicians in choosing appropriate treatment for myopia. We report the distribution of AL in Australians of different age groups and refractive errors., Methods: Retrospectively collected spherical equivalent refraction (SER) and AL data of 5938 individuals aged 5 to 89 years from 8 Australian studies were included. Based on the SER, participants were classified as emmetropes, myopes, and hyperopes. Two regression model parameterizations (piece-wise and restricted cubic splines [RCS]) were applied to the cross-sectional data to analyze the association between age and AL. These results were compared with longitudinal data from the Raine Study where the AL was measured at age 20 (baseline) and 28 years., Results: A piece-wise regression model (with 1 knot) showed that myopes had a greater increase in AL before 18 years by 0.119 mm/year (P < 0.001) and after 18 years by 0.011 mm/year (P < 0.001) compared to emmetropes and hyperopes, with the RCS model (with 3 knots) showing similar results. The longitudinal data from the Raine Study revealed that, when compared to emmetropes, only myopes showed a significant change in the AL in young adulthood (by 0.016 mm/year, P < 0.001)., Conclusions: The AL of myopic eyes increases more rapidly in childhood and slightly in early adulthood. Further studies of longitudinal changes in AL, particularly in childhood, are required to guide myopia interventions., Translational Relevance: The axial length of myopic eyes increases rapidly in childhood, and there is a minimal increase in the axial length in non-myopic eyes after 18 years of age.
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- 2023
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42. A Systematic Review of Clinical Practice Guidelines for Age-related Macular Degeneration.
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Han X, Chen Y, Gordon I, Safi S, Lingham G, Evans J, Keel S, and He M
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- Humans, Angiogenesis Inhibitors therapeutic use, Vascular Endothelial Growth Factor A, Visual Acuity, Wet Macular Degeneration drug therapy, Geographic Atrophy drug therapy
- Abstract
Background: In response to the recommendations of the World Health Organization (WHO) World report on vision, the WHO is developing a Package of Eye Care Interventions (PECI) to support the integration of eye care into health systems within countries. This study was done to systematically review clinical practice guidelines (CPGs) related to age-related macular degeneration (AMD) to provide evidence-based recommendations., Methods: All AMD-related CPGs published between 2010 and 2020 were reviewed and evaluated using the Appraisal of Guidelines for Research and Evaluation II (AGREE II) tool., Results: Of 3778 CPGs identified, 48 underwent full-text screening and eight underwent quality appraisal. Five National Institute for Health and Care Excellence (NICE, UK) guidelines for AMD were finally selected for data extraction. Intravitreal anti-vascular endothelial growth factor (VEGF) treatment was strongly recommended for advanced, active neovascular AMD based on high-quality evidence. Photodynamic therapy and laser photocoagulation were not recommended as an adjunct to anti-VEGF therapy as first-line treatment for AMD. Recommendations on other interventions, including epiretinal brachytherapy, miniature lens system implantation, and limited macular translocation, were weak and evidence mostly came from low-quality case series studies. Hence these interventions were recommended to be used only with special arrangements or research. Existing evidence on treating geographic atrophy was limited, an implantable miniature telescope might be an effective intervention to improve vision but was still under investigation., Discussion: Current CPGs recommend anti-VEGF therapy for patients with late active neovascular AMD, while other interventions should be used with caution and further researches are warranted.
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- 2023
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43. Conjunctival ultraviolet autofluorescence area decreases with age and sunglasses use.
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Lingham G, Kugelman J, Charng J, Lee SS, Yazar S, McKnight CM, Coroneo MT, Lucas RM, Brown H, Stevenson LJ, Mackey DA, and Alonso-Caneiro D
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- Young Adult, Humans, Adult, Ultraviolet Rays adverse effects, Sunlight adverse effects, Cross-Sectional Studies, Optical Imaging methods, Conjunctiva, Pterygium diagnosis
- Abstract
Background: Conjunctival ultraviolet autofluorescence (CUVAF) is a method of detecting conjunctival damage related to ultraviolet radiation exposure. In cross-sectional studies, CUVAF area is positively associated with self-reported time spent outdoors and pterygium and negatively associated with myopia; however, longitudinal studies are scarce., Aims: To use a novel deep learning-based tool to assess 8-year change in CUVAF area in young adults, investigate factors associated with this change and identify the number of new onset pterygia., Methods: A deep learning-based CUVAF tool was developed to measure CUVAF area. CUVAF area and pterygium status were assessed at three study visits: baseline (participants were approximately 20 years old) and at 7-year and 8-year follow-ups. Participants self-reported sun protection behaviours and ocular history., Results: CUVAF data were available for 1497 participants from at least one study visit; 633 (43%) participants had complete CUVAF data. Mean CUVAF areas at baseline and the 7-year and 8-year follow-ups were 48.4, 39.3 and 37.7 mm
2 , respectively. There was a decrease in mean CUVAF area over time (change in total CUVAF area=-0.96 mm2 per year (95% CI: -1.07 to -0.86)). For participants who wore sunglasses ≥1/2 of the time, CUVAF area decreased by an additional -0.42 mm2 per year (95% CI: -0.72 to -0.12) on average. Fourteen (1.5%) participants developed a pterygium., Conclusions: In this young adult cohort, CUVAF area declined over an 8-year period. Wearing sunglasses was associated with a faster reduction in CUVAF area. Deep learning-based models can assist in accurate and efficient measurement of CUVAF area., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)- Published
- 2023
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44. Incidence and Prevalence of Keratoconus Based on Scheimpflug Imaging.
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Chan E, Chong EW, Lee SS, Franchina M, Yazar S, Eastwood P, McArdle N, Mackey DA, and Lingham G
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- Humans, Incidence, Prevalence, Diagnostic Imaging methods, Cornea, Corneal Topography methods, Keratoconus diagnosis, Keratoconus epidemiology
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- 2023
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45. TFOS Lifestyle: Impact of the digital environment on the ocular surface.
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Wolffsohn JS, Lingham G, Downie LE, Huntjens B, Inomata T, Jivraj S, Kobia-Acquah E, Muntz A, Mohamed-Noriega K, Plainis S, Read M, Sayegh RR, Singh S, Utheim TP, and Craig JP
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- Humans, Quality of Life, Tears, Life Style, Eye Diseases, Asthenopia etiology, Asthenopia diagnosis, Dry Eye Syndromes diagnosis, Dry Eye Syndromes complications
- Abstract
Eye strain when performing tasks reliant on a digital environment can cause discomfort, affecting productivity and quality of life. Digital eye strain (the preferred terminology) was defined as "the development or exacerbation of recurrent ocular symptoms and/or signs related specifically to digital device screen viewing". Digital eye strain prevalence of up to 97% has been reported, due to no previously agreed definition/diagnostic criteria and limitations of current questionnaires which fail to differentiate such symptoms from those arising from non-digital tasks. Objective signs such as blink rate or critical flicker frequency changes are not 'diagnostic' of digital eye strain nor validated as sensitive. The mechanisms attributed to ocular surface disease exacerbation are mainly reduced blink rate and completeness, partial/uncorrected refractive error and/or underlying binocular vision anomalies, together with the cognitive demand of the task and differences in position, size, brightness and glare compared to an equivalent non-digital task. In general, interventions are not well established; patients experiencing digital eye strain should be provided with a full refractive correction for the appropriate working distances. Improving blinking, optimizing the work environment and encouraging regular breaks may help. Based on current, best evidence, blue-light blocking interventions do not appear to be an effective management strategy. More and larger clinical trials are needed to assess artificial tear effectiveness for relieving digital eye strain, particularly comparing different constituents; a systematic review within the report identified use of secretagogues and warm compress/humidity goggles/ambient humidifiers as promising strategies, along with nutritional supplementation (such as omega-3 fatty acid supplementation and berry extracts)., Competing Interests: Declaration of competing interest James S. Wolffsohn: 3m (F), AOS (C), Aston Vision Sciences (S), Atia Vision (C), Bausch & Lomb (C), Alcon (C,F), Allergan (F), CooperVision (C,F), CSIDryEye (C), DopaVision (C), Eyoto (S), Johnson & Johnson Vision (F), Rayner (F), M2C Pharmaceuticals (C,F), Medmont (C), Novartis (C,F), NuVision (C,F), Santen (C), Scope Ophthalmics (C,F), SightGlass (F, C), TFOS (S), Théa Laboratories (C,F), Topcon (F), The Eye Doctor (F), Veluon (F), Wolffsohn Research Limited (S), WO2019/001928 A1 (P), WO2019193051A1 (P). Gareth Lingham: None (N). Laura E. Downie: Alcon (F), Azura Ophthalmics (F), BCLA (R), CooperVision (F), Cornea and Contact Lens Society of Australia (R), Medmont International (R), NHMRC Australia (F), Novartis (F), TFOS (S), dry eye diagnostic method (P). Byki Huntjens: Alcon (C), Bausch and Lomb (C), CooperVision (C), Johnson & Johnson Vision Care Institute (C). Takenori Inomata: Novartis (F), Santen (F,C), Lion Corporation (F), SEED Company (F), Johnson & Johnson (F), Hogy Medical Co (F), Shin Nippon Biomedical Laboratories (F), Renatech (P), Kowa (P), InnoJin (E). Saleel Jivraj: IMED Pharma (F, C), The Body Doctor (F), DryiRelief App (I), My Myopia Management App (I), Optometrist Calgary (P), Alcon (C). Emmanuel Kobia-Acquah: None (N) Alex Muntz: Azura Ophthalmics (F), . Karim Mohamed-Noriega:None (N) Sotiris Plainis: None (N). Michael Read: Johnson & Johnson Vision (F), Coopervision (C), Menicon (F), Visco Vision inc (F), US10959973B2 (P). Rony R. Sayegh: Novartis (C), Allergan (C), US20220175516A1 (P). Sumeer Singh: None (N). Tor P. Utheim: ABIGO (F), Alcon (F,C), Allergan (F), AMWO (F), Bausch&Lomb (F), Bayer (F,C), European school for advanced studies in ophthalmology (F,C), InnZ Medical (F), Medilens Nordic (F), Medistim (F), Novartis (F,C), Santen (F,C), Specsavers (F,C), Shire Pharmaceuticals (F,C), Thea Laboratoires (F,C). Jennifer P. Craig: Adelphi Values Ltd (R), Alcon (F,R,C), Asta Supreme (R), Azura Ophthalmics (F,R), E-Swin (F,R), Johnson & Johnson Vision (R), Manuka Health (F), Medmont International (R), Novoxel (R), Oculeve (F), Photon Therapeutics (R), Resono Ophthalmic (F,R), TFOS (S), Théa Laboratories (F,R), Topcon (F,R), TRG Natural Pharmaceuticals (F,R)., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2023
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46. TFOS Lifestyle - Evidence quality report: Advancing the evaluation and synthesis of research evidence.
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Downie LE, Britten-Jones AC, Hogg RE, Jalbert I, Li T, Lingham G, Liu SH, Qureshi R, Saldanha IJ, Singh S, and Craig JP
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- Reproducibility of Results, Evidence-Based Practice, Systematic Reviews as Topic
- Abstract
Evidence-based practice is a dominant paradigm in healthcare that emphasizes the importance of ensuring the translation of the best available, relevant research evidence into practice. An Evidence Quality Subcommittee was established to provide specialized methodological support and expertise to promote rigorous and evidence-based approaches for the Tear Film and Ocular Surface Society (TFOS) Lifestyle Epidemic reports. The present report describes the purpose, scope, and activity of the Evidence Quality Subcommittee in the undertaking of high-quality narrative-style literature reviews, and leading prospectively registered, reliable systematic reviews of high priority research questions, using standardized methods for each topic area report. Identification of predominantly low or very low certainty evidence across the eight systematic reviews highlights a need for further research to define the efficacy and/or safety of specific lifestyle interventions on the ocular surface, and to clarify relationships between certain lifestyle factors and ocular surface disease. To support the citation of reliable systematic review evidence in the narrative review sections of each report, the Evidence Quality Subcommittee curated topic-specific systematic review databases and relevant systematic reviews underwent standardized reliability assessment. Inconsistent methodological rigor was noted in the published systematic review literature, emphasizing the importance of internal validity assessment. Based on the experience of implementing the Evidence Quality Subcommittee, this report makes suggestions for incorporation of such initiatives in future international taskforces and working groups. Content areas broadly relevant to the activity of the Evidence Quality Subcommittee, including the critical appraisal of research, clinical evidence hierarchies (levels of evidence), and risk of bias assessment, are also outlined., Competing Interests: Declaration of competing interest Laura E. Downie: Alcon (F), Azura Ophthalmics (F), BCLA (R), CooperVision (F), Cornea and Contact Lens Society of Australia (R), Medmont International (R), NHMRC Australia (F), Novartis (F), TFOS (S); Alexis Ceecee Britten-Jones: Plano (R); Ruth E Hogg: None; Isabelle Jalbert: Johnson & Johnson Vision (F), Diabetes Australia (F); Specsavers (R), University of Melbourne (R), Australian College of Optometry (R), Optometry Council of Australia and New Zealand (S), New South Wales Optometry Council (S); Tianjing Li: National Eye Institute, National Institutes of Health (F); Gareth Lingham: None; Su-Hsun Liu: None; Riaz Qureshi: None; Ian J Saldanha: None; Sumeer Singh: None; Jennifer P Craig: Adelphi Values Ltd (R), Alcon (F,R,C), Asta Supreme (R), Azura Ophthalmics (F,R), E-Swin (F,R), Johnson & Johnson Vision (R), Laboratoires Théa (F,R), Manuka Health NZ (F), Medmont International (R), Novoxel (R), Oculeve (F), Photon Therapeutics (R), Resono Ophthalmic (F,R), TFOS (S), Topcon (F,R), TRG Natural Pharmaceuticals (F,R)., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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47. Systematic review of clinical practice guidelines for uveitis.
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Ghadiri N, Reekie IR, Gordon I, Safi S, Lingham G, Evans JR, and Keel S
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- Humans, Adalimumab therapeutic use, Uveitis diagnosis, Arthritis, Juvenile complications
- Abstract
To facilitate the integration of eye care into universal health coverage, the WHO is developing a Package of Eye Care Interventions (PECI). Development of the PECI involves the identification of evidence-based interventions from relevant clinical practice guidelines (CPGs) for uveitis.A systematic review of CPGs published on uveitis between 2010 and March 2020 was conducted. CPGs passing title and abstract and full-text screening were evaluated using the Appraisal of Guidelines for Research and Evaluation II (AGREE II) tool and data on recommended interventions extracted using a standard data extraction sheet.Of 56 CPGs identified as potentially relevant from the systematic literature search, 3 CPGs underwent data extraction following the screening stages and appraisal with the AGREE II tool. These CPGs covered screening for, monitoring and treating juvenile idiopathic arthritis (JIA)-associated uveitis, the use of adalimumab and dexamethasone in treating non-infectious uveitis, and a top-level summary of assessment, differential diagnosis and referral recommendations for uveitis, aimed at primary care practitioners. Many of the recommendations were based on expert opinion, though some incorporated clinical study and randomised controlled trial data.There is currently sparse coverage of the spectrum of disease caused by uveitis within CPGs. This may partially be due to the large number of conditions with diverse causes and clinical presentations covered by the umbrella term uveitis, which makes numerous sets of guidelines necessary. The limited pool of CPGs to select from has implications for clinicians seeking guidance on clinical care strategies for uveitis., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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48. Choroidal Thickness Profiles and Associated Factors in Myopic Children.
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Kobia-Acquah E, Flitcroft DI, Lingham G, Paudel N, and Loughman J
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- Child, Humans, Choroid, Fovea Centralis, Refraction, Ocular, Tomography, Optical Coherence methods, Diabetic Retinopathy, Macula Lutea, Myopia diagnosis, Myopia therapy, Myopia complications
- Abstract
Significance: This study addresses the lack of choroidal thickness (ChT) profile information available in European children and provides a baseline for further evaluation of longitudinal changes in ChT profiles in myopic children as a potential biomarker for myopia treatment and identifying children at risk of myopic progression., Purpose: This study aimed to investigate ChT profiles and associated factors in myopic children., Methods: Baseline data of 250 myopic children aged 6 to 16 years in the Myopia Outcome Study of Atropine in Children clinical trial were analyzed. Choroidal thickness images were obtained using swept-source optical coherence tomography (DRI-OCT Triton Plus; Topcon Corporation, Tokyo, Japan). The macula was divided into nine Early Treatment of Diabetic Retinopathy Study locations with diameters of 1, 3, and 6 mm corresponding to the central fovea, parafoveal, and perifoveal regions. Multiple linear regression models were used to investigate determinants of ChT., Results: Choroidal thickness varied across the macular Early Treatment of Diabetic Retinopathy Study locations ( P < .001): thickest in the perifoveal superior region (mean ± standard deviation, 249.0 ± 60.8 μm) and thinnest in the perifoveal nasal region (155.1 ± 50.3 μm). On average, ChT was greater in all parafoveal (231.8 ± 57.8 μm) compared with perifoveal (218.1 ± 49.1 μm) regions except superiorly where the ChT was greater in the perifoveal region. Longer axial length and higher myopic spherical equivalent refraction were consistently associated with thinner ChT at all locations in the multiple linear regression models. Asian race was significantly associated with thinner ChT only at parafoveal and perifoveal superior regions after Bonferroni correction ( P = .004 and P = .001, respectively)., Conclusions: Choroidal thickness was thinnest in the nasal macular region and varied systematically across all macular locations, with axial length and spherical equivalent refraction being the strongest determinants of ChT. Longitudinal evidence will need to evaluate whether any differences in ChT profiles are predictive of myopic progression and to determine the role of ChT measurements in identifying myopic children most in need of myopia control treatment., Competing Interests: Conflict of Interest Disclosure: No conflicting relationship exists for any author., (Copyright © 2022 American Academy of Optometry.)
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- 2023
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49. Toward Universal Eye Health Coverage-Key Outcomes of the World Health Organization Package of Eye Care Interventions: A Systematic Review.
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Keel S, Lingham G, Misra N, Block S, Bourne R, Calonge M, Cheng CY, Friedman DS, Furtado JM, Khanna R, Mariotti S, Mathenge W, Matoto E, Müeller A, Rabiu M, Rasengane T, Resnikoff S, Wormald R, Yasmin S, Zhao J, Evans JR, and Cieza A
- Subjects
- Humans, World Health Organization, Universal Health Insurance, Health Promotion
- Abstract
Importance: Despite persistent inequalities in access to eye care services globally, guidance on a set of recommended, evidence-based eye care interventions to support country health care planning has not been available. To overcome this barrier, the World Health Organization (WHO) Package of Eye Care Interventions (PECI) has been developed., Objective: To describe the key outcomes of the PECI development., Evidence Review: A standardized stepwise approach that included the following stages: (1) selection of priority eye conditions by an expert panel after reviewing epidemiological evidence and health facility data; (2) identification of interventions and related evidence for the selected eye conditions from a systematic review of clinical practice guidelines (CPGs); stage 2 included a systematic literature search, screening of title and abstracts (excluding articles that were not relevant CPGs), full-text review to assess disclosure of conflicts of interest and affiliations, quality appraisal, and data extraction; (3) expert review of the evidence extracted in stage 2, identification of missed interventions, and agreement on the inclusion of essential interventions suitable for implementation in low- and middle-income resource settings; and (4) peer review., Findings: Fifteen priority eye conditions were chosen. The literature search identified 3601 articles. Of these, 469 passed title and abstract screening, 151 passed full-text screening, 98 passed quality appraisal, and 87 were selected for data extraction. Little evidence (≤1 CPG identified) was available for pterygium, keratoconus, congenital eyelid disorders, vision rehabilitation, myopic macular degeneration, ptosis, entropion, and ectropion. In stage 3, domain-specific expert groups voted to include 135 interventions (57%) of a potential 235 interventions collated from stage 2. After synthesis across all interventions and eye conditions, 64 interventions (13 health promotion and education, 6 screening and prevention, 38 treatment, and 7 rehabilitation) were included in the PECI., Conclusions and Relevance: This systematic review of CPGs for priority eye conditions, followed by an expert consensus procedure, identified 64 essential, evidence-based, eye care interventions that are required to achieve universal eye health coverage. The review identified some important gaps, including a paucity of high-quality, English-language CPGs, for several eye diseases and a dearth of evidence-based recommendations on eye health promotion and prevention within existing CPGs.
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- 2022
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50. Low-concentration atropine eyedrops for myopia control in a multi-racial cohort of Australian children: A randomised clinical trial.
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Lee SS, Lingham G, Blaszkowska M, Sanfilippo PG, Koay A, Franchina M, Chia A, Loughman J, Flitcroft DI, Hammond CJ, Azuara-Blanco A, Crewe JM, Clark A, and Mackey DA
- Subjects
- Child, Humans, Adolescent, Ophthalmic Solutions, Australia, Refraction, Ocular, Disease Progression, Atropine, Myopia drug therapy
- Abstract
Background: To test the hypothesis that 0.01% atropine eyedrops are a safe and effective myopia-control approach in Australian children., Methods: Children (6-16 years; 49% Europeans, 18% East Asian, 22% South Asian, and 12% other/mixed ancestry) with documented myopia progression were enrolled into this single-centre randomised, parallel, double-masked, placebo-controlled trial and randomised to receive 0.01% atropine (n = 104) or placebo (n = 49) eyedrops (2:1 ratio) instilled nightly over 24 months (mean index age = 12.2 ± 2.5 and 11.2 ± 2.8 years, respectively). Outcome measures were the changes in spherical equivalent (SE) and axial length (AL) from baseline., Results: At 12 months, the mean SE and AL change from baseline were -0.31D (95% confidence interval [CI] = -0.39 to -0.22) and 0.16 mm (95%CI = 0.13-0.20) in the atropine group and -0.53D (95%CI = -0.66 to -0.40) and 0.25 mm (95%CI = 0.20-0.30) in the placebo group (group difference p ≤ 0.01). At 24 months, the mean SE and AL change from baseline was -0.64D (95%CI = -0.73 to -0.56) and 0.34 mm (95%CI = 0.30-0.37) in the atropine group, and -0.78D (95%CI = -0.91 to -0.65) and 0.38 mm (95%CI = 0.33-0.43) in the placebo group. Group difference at 24 months was not statistically significant (p = 0.10). At 24 months, the atropine group had reduced accommodative amplitude and pupillary light response compared to the placebo group., Conclusions: In Australian children, 0.01% atropine eyedrops were safe, well-tolerated, and had a modest myopia-control effect, although there was an apparent decrease in efficacy between 18 and 24 months, which is likely driven by a higher dropout rate in the placebo group., (© 2022 The Authors. Clinical & Experimental Ophthalmology published by John Wiley & Sons Australia, Ltd on behalf of Royal Australian and New Zealand College of Ophthalmologists.)
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- 2022
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