Contrast sensitivity and glare testing in pseudophakia and early cataracts

Abstract

In order to evaluate the extent of impairment in visual functions in early cataract and to better evaluate visual functions in pseudophakia contrast sensitivity measurements and glare testing were performed and compared with the control group. 70 eyes with early cataracts, 70 pseudophakic eyes and 70 normal eyes were enroiled in the study. Contrast sensitivity scores were significantly lower (p<0.001) and glare was significantly higher (p<0.01) in both study groups when compared with normal subjects. Contrast sensitivity and glare testing reveal useful information about visual impairment in early cataract and they can also explain the subjective symptoms after cataract surgery despite high Snellen visual acuities.