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Vision with spatial light modulator simulating multifocal contact lenses in an adaptive optics system

Authors :
Vedhakrishnan, Shrilekha
Vinas, Maria
Aissati, Sara
Marcos, Susana
Source :
Biomedical Optics Express; May 2021, Vol. 12 Issue: 5 p2859-2872, 14p
Publication Year :
2021

Abstract

Visual simulators are useful tools to provide patients experience of multifocal vision prior to treatment. In this study, commercially available center-near aspheric multifocal contact lenses (MCLs) of low, medium, and high additions were mapped on a spatial light modulator (SLM) and validated on a bench. Through focus visual acuity (TFVA) was measured in subjects through the SLM and real MCLs on the eye. A correlation metric revealed statistically significant shape similarity between TFVA curves with real and simulated MCLs. A Bland-Altman analysis showed differences within confidence intervals of ±0.01 logMAR for LowAdd/MediumAdd and ±0.06 logMAR for HighAdd. Visual performance with simulated MCLs outperformed real MCLs by ∼20%. In conclusion, SLM captures the profile of center-near MCLs and reproduces vision with real MCLs, revealing that the MCL profile and its interactions with the eye’s optics (and not fitting aspects) account for the majority of the contributions to visual performance with MCLs.

Details

Language :
English
ISSN :
21567085
Volume :
12
Issue :
5
Database :
Supplemental Index
Journal :
Biomedical Optics Express
Publication Type :
Periodical
Accession number :
ejs55912445