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Functional assessment of a new extended depth-of-focus intraocular lens.
- Source :
-
Eye (London, England) [Eye (Lond)] 2019 Mar; Vol. 33 (3), pp. 404-410. Date of Electronic Publication: 2018 Sep 28. - Publication Year :
- 2019
-
Abstract
- Background/objective: This study aimed to investigate the visual performance of a new extended depth-of-focus intraocular lens (EDOF-IOL).<br />Subjects/methods: In this multicenter, prospective, observational study, we enrolled 97 patients who underwent cataract surgery or refractive lens exchange with implantation of the Mini Well EDOF-IOL (SIFI, Italy). Patients underwent postoperatively the following examinations between 4 and 8 weeks after surgery: corrected distance visual acuity (CDVA), reading speed with Radner's chart, distance-corrected near visual acuity (DCNVA), defocus curve, contrast sensitivity, and haloes quantitative assessment.<br />Results: In the whole sample, the mean monocular CDVA and DCNVA were, respectively, 0.02 ± 0.07 logMAR and 0.38 ± 0.15 logRAD (logarithm of the reading acuity determination). In the 67 bilaterally implanted patients, binocular CDVA and DCNVA were better (0.00 ± 0.05 logMAR and 0.26 ± 0.13 logRAD) than the corresponding monocular values (p = 0.02 and p = 0.0002, respectively). Ninety-two percent of patients bilaterally implanted reached a binocular reading speed >80 words per minute at a 0.5 logRAD print size (corresponding to the common book print size). The defocus curves showed that the EDOF-IOL provided increased depth of focus through 2.0 D of defocus, with the best performance at 1.0 and 1.5 D. Contrast sensitivity was within normal limits at all spatial frequencies. The mean visual disturbance index was 0.08 ± 0.12, suggesting low night visual disturbances.<br />Conclusions: The new EDOF-IOL provided good visual acuity for distance, intermediate, and near vision, with no loss of contrast sensitivity and low risk of night visual disturbances.
- Subjects :
- Aged
Aged, 80 and over
Follow-Up Studies
Humans
Male
Middle Aged
Prospective Studies
Pseudophakia surgery
Treatment Outcome
Depth Perception physiology
Lens Implantation, Intraocular methods
Multifocal Intraocular Lenses
Phacoemulsification methods
Pseudophakia physiopathology
Visual Acuity physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1476-5454
- Volume :
- 33
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Eye (London, England)
- Publication Type :
- Academic Journal
- Accession number :
- 30266985
- Full Text :
- https://doi.org/10.1038/s41433-018-0221-1