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Purpose: To investigate the anatomical and visual results of intravitreal dexamethasone implant treatment for macular edema secondary to retinal vein occlusion. Materials and Methods: The study included a total of 25 patients undergoing dexamethasone implant for macular edema secondary to retinal vein occlusion. Retrospective evaluation included best corrected visual acuity (BCVA) measured with ETDRS charts and macular thickness using optical coherence tomography (OCT) at each visit. The contrast sensitivity levels of patients were evaluated with Pelli-Robson chart. Results: The mean age of the patients was 59.5±13.3 years (range, 34-84years). The mean follow-up time was14.6 ± 5.5 months (range, 6-27 months) and the mean number of implants was 2.6±1.5 (range,1-6). The increase in the visual acuity according to time was statistically significant (p<0.005). The decrease in macular edema was statistically significant (p<0.005). The initial mean contrast sensitivity before implant was 0.72±0.50 log, and the final mean contrast sensitivity was 1.08±0.46 log (p<0.005). No systemic adverse events were observed in any of the cases. When the ocular adverse effects were assessed, cataract progression was seen in 54.5% and cataract operations were performed on 4 patients (18.1%). The increase in intraocular pressure was statistically significant (p<0.005) and only one patient needed medical treatment. Conclusion: Dexamethasone implant had a positive effect on anatomic and visual results in retinal vein occlusion-associated macular edema but the ideal repeat interval for intravitreal dexamethasone treatment should be shorter than 6 months. [ABSTRACT FROM AUTHOR]

Purpose. To report the efficacy of hyperbaric oxygen (HBO) therapy in a case of branch retinal artery occlusion (BRAO) in a 15-year-old boy. Methods. We report a 15-year-old boy with sudden loss of vision due to BRAO. Examination included laboratory evaluation for systemic risk factors. Follow-up exams included visual acuity, fundus examination, fundus fluorescein angiography, and visual field testing. HBO therapy was employed for treatment. Results. Medical history was positive for isolated glucocorticoid deficiency. Laboratory evaluation disclosed hyperhomocysteinemia and methylenetetrahydrofolate reductase (MTHFR) mutation. The visual acuity 0.05 at presentation improved to 0.8 after 20 days of HBO therapy. There was no change on visual fields. Conclusion. In this pediatric case, HBO therapy was useful in the treatment of BRAO. [ABSTRACT FROM AUTHOR]

Purpose: To compare visual outcomes, number of visits and ranibizumab injections in patients treated with a Wait & Extend (W&E) or Treat & Observe (T&O) regimen. Methods: This 12-month, randomized, multicentre, open-label study enrolled patients aged ≥50 years with choroidal neovascularization (CNV) secondary to AMD who had not received anti-VEGF agents. Patients received three monthly injections of ranibizumab before randomization (1:1): (i) T&O patients were examined monthly and retreated if needed, (ii) W&E patients had a follow-up visit 1 month later. If no lesions were active, the interval to the next visit was extended by 2 weeks to a maximum of 8 weeks. Active lesions were re-treated and the follow-up schedule restarted. Primary end-point was change in BCVA at Month 12. Results: Of the 104 screened patients, 99 were eligible and received ≥1 ranibizumab injection; 93 were randomized (T&O: 45, W&E: 48). The median (interquartile range [IQR]) change in BCVA (logMAR) from baseline at Month 12 was similar between groups (T&O: -0.12 [0.38]; W&E: -0.18 [0.32], p = 0.267). Median (IQR) number of visits at study end (including screening, baseline and control visit after 1st injection) was 15.0 (1.0) for T&O, and 12.0 (2.0) for W&E (p < 0.001). Injection numbers were similar between groups (median [IQR]: 6.0 [3.0] and 5.0 [4.0], respectively, p = 0.215). Adverse events were similar between groups. Conclusion: W&E regimen resulted in a similar efficacy and safety profile to the labelled T&O regimen in patients with CNV secondary to AMD, and may help reduce the burden of follow-up visits. [ABSTRACT FROM AUTHOR]