Problems of Spectacle Wearing Aphakes

Abstract

A questionnaire was presented to thirteen aphakic patients in order to determine the important perceptual disturbances experienced by spectacle wearing aphakes and to determine the everyday tasks with which they have difficulties. The main perceptual disturbances were: reduced visual field, glare, sudden appearance of objects from the periphery, and difficulties with judgments of distance and size. The main task difficulties occurred with moving up or down stairs, moving about in crowds, driving, and crossing roads. Patients selected the following factors as being most important in aphakic spectacle lens design: increase in visual field, reduction in glare, and clearer vision when looking through the periphery of lenses.