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

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Millán García Varela, María Sagrario and Vega Lerin, Fidel and Poyales Galán, Francisco and Garzón Jiménez, Nuria (2019) Clinical assessment of chromatic aberration in phakic and pseudophakic eyes using a simple autorefractor. Biomedical Optics Express . 11 p.. ISSN 2156-7085 (In Press)

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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.


Item Type:Article
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© XXXX [year] 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.

Uncontrolled Keywords:Aberration; Chromatic aberration; Phakic eye; Pseudophakic eye; Autorefractor; Monofocal lenses
Subjects:Medical sciences > Optics > Optometry
Medical sciences > Optics > Visual perception
Medical sciences > Optics > Geometrical and instumental optics
ID Code:56449
Deposited On:23 Jul 2019 09:15
Last Modified:23 Jul 2019 10:17

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