In Vivo Longitudinal Chromatic Aberration of Pseudophakic Eyes
| Autor: | Agnieszka Jóźwik, Marek Zając, Aneta Hill-Bator, Anna Turno-Kręcicka, Damian Siedlecki |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Optics and Photonics
medicine.medical_specialty Light Pseudophakia genetic structures Color Refraction Ocular Optics Lens Implantation Intraocular Refractometer Intraocular lens design In vivo Ophthalmology Chromatic aberration medicine Humans Chromatic scale Aged Lenses Intraocular Physics business.industry Significant difference Cycloplegia Refractive Errors Refraction eye diseases Female sense organs medicine.symptom business Follow-Up Studies Optometry |
| Zdroj: | Optometry and Vision Science. 91:240-246 |
| ISSN: | 1040-5488 |
| DOI: | 10.1097/opx.0000000000000137 |
| Popis: | PURPOSE To present the results of longitudinal chromatic aberration measurements on two groups of pseudophakic eyes in comparison to healthy eyes. METHODS The longitudinal chromatic aberration of the eye, defined as chromatic difference of refraction with disabled accommodation, was measured with the use of a visual refractometer with a custom-designed target illuminator consisting of a narrow-band RGB diode (blue λb = 470 ± 15 nm; green λg = 525 ± 18 nm; red λr = 660 ± 10 nm). The measurements were performed on nine eyes implanted with AcrySof IQ SN60WF, 14 eyes implanted with AcrySof SA60AT, and 10 phakic eyes under cycloplegia. RESULTS The mean values of the longitudinal chromatic aberration between 470 and 660 nm for the control group was 1.12 ± 0.14 D. For SA60AT group, it was 1.45 ± 0.42 D whereas for SN60WF it was 1.17 ± 0.52 D. The statistical test showed significant difference between SA60AT and the control group (p << 0.05) and no significant difference between SN60WF and the control groups (p = 0.64). CONCLUSIONS The study showed that the longitudinal chromatic aberration in vivo can be easily and reliably estimated with an adapted visual refractometer. The two groups of pseudophakic eyes measured in this study showed different values of chromatic aberration. Its magnitude for SA60AT group was significantly larger than for the control group whereas for SN60WF the difference was not significant. The optical material used for intraocular lens design may have significant influence on the magnitude of the chromatic aberration of the pseudophakic eye, and therefore on its optical and visual performance in polychromatic light. |
| Databáze: | OpenAIRE |
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