PMID: 11338274May 8, 2001Paper

Effect of cataract surgery on contrast sensitivity

Ceská a slovenská oftalmologie : casopis Ceské oftalmologické spolecnosti a Slovenské oftalmologické spolecnosti
S SkorkovskáS Synek

Abstract

The authors examined in a group of patients with cataract the visual acuity on Snellen's optotypes and contrast sensitivity using Pelli-Robson's test before cataract surgery and after cataract extraction and implantation of an intraocular lens. A VF-7 questionnaire was used for subjective evaluation of the result of surgery. The values of contrast sensitivity of the pseudophakic eyes were compared with the contrast sensitivity of eyes of a age-matched control group with a natural lens. After cataract surgery and lens implantation highly significant improvement of visual acuity of the operated eye was recorded. There was also significant improvement of binocular contrast sensitivity in the study group. The authors did not detect a significant difference of the contrast sensitivity of eyes with a PMMA lens and eyes with a silicone lens. There was no significant difference in the contrast sensitivity of pseudophakic eyes and phakic eyes of the control group. The CF-7 questionnaire revealed that cataract surgery led to significant improvement of the investigated visual activities, as apparent from the subjective evaluation by the patients. However, no significant correlation was found between objective (contrast sensitivity) and su...Continue Reading

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