PMID: 16640052Apr 28, 2006Paper

The influence of IOL implantation on visual acuity, contrast sensitivity and colour vision 2 and 4 months after cataract surgery

Ceská a slovenská oftalmologie : casopis Ceské oftalmologické spolecnosti a Slovenské oftalmologické spolecnosti
J Ventruba

Abstract

To assess the change in visual acuity, contrast sensitivity and colour vision in relation to the time after cataract surgery and to the type of implanted IOL, and to compare visual functions by patients with one and two pseudophakic eyes. 45 cataract patients were examined before and then 2 and 4 month after the cataract surgery. Visual acuity (VA) was tested on logMAR optotype chart with Landolt rings, contrast sensitivity (CS) was tested on the Pelli-Robson chart and the SWCT chart. For colour vision (CV) testing, the standard Farnsworth D-15 test and the desaturated Lanthony D-15 test were used. The patients were divided into two groups--a group with one pseudophakic eye and a group with two pseudophakic eyes, and also according to the type of IOL--PMMA or hydrophobic acrylate that had been implanted. Control group was composed of phakic subjects with no ocular pathology. After the cataract surgery, in both groups there was a significant improvement in monocular and binocular VA (p < 0.05), in monocular and binocular CS using both types of charts--Pelli-Robson (p < 0.05) and SWCT in all the spatial frequencies (p < 0.05). Also, a significant decrease in the number of minor errors in the standard Farnsworth D-15 test (p < 0.0...Continue Reading

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