Millán García Varela, María SagrarioVega Lerin, FidelPoyales Galán, FranciscoGarzón Jiménez, Nuria2023-06-172023-06-1720192156-708510.1364/BOE.10.004168https://hdl.handle.net/20.500.14352/13469© 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.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.engjournal articlehttps://doi.org/10.1364/BOE.10.004168https://www.osapublishing.org/boe/upcomingissue.cfmopen access681.784612.844617.7-089.243AberrationChromatic aberrationPhakic eyePseudophakic eyeAutorefractorMonofocal lensesOptometríaÓptica oftálmicaÓptica geométrica e instrumental2209.15 Optometría2209.06 Óptica geométrica