Clinical assessment of chromatic aberration in phakic and pseudophakic eyes  using a simple autorefractor

Millán García Varela, María Sagrario; Vega Lerin, Fidel; Poyales Galán, Francisco; Garzón Jiménez, Nuria

Clinical assessment of chromatic aberration in phakic and pseudophakic eyes using a simple autorefractor

Download

Nuria Garzón_proofs_def.pdf (1.06 MB)

Official URL

https://doi.org/10.1364/BOE.10.004168

Publication date

2019

Authors

Millán García Varela, María Sagrario

Vega Lerin, Fidel

Poyales Galán, Francisco

Garzón Jiménez, Nuria

Publisher

OSA Publishing

Citations

Exportar

URI

https://hdl.handle.net/20.500.14352/13469

Abstract

We describe a psychophysical method and a simple setup – an autorefractor with a Scheiner disc, sequentially illuminated with red and blue lights – for the clinical assessment of the longitudinal chromatic aberration (LCA) in phakic and pseudophakic patients. This method applies to the unaccommodated eye, even in the presence of positive or negative refractive errors and astigmatism. It measures the chromatic difference of refraction as an estimate of LCA. We built a proof of concept from inexpensive and off-the-shelf optomechanical components with which we obtained the preliminary clinical results presented in the paper. We considered one control group of phakic patients and three groups of pseudophakic patients with monofocal implants of different designs and materials. The results, satisfactory and consistent with those reported by other researchers in related works, demonstrate the method and system feasibility.

Description

© 2019 [Optical Society of America]. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.