Abstract

Contrast sensitivity measurement is becoming increasingly important in diagnosising visual health and assessing task-related visual performance (1). Typically, only computer controlled video devices are generally available to measure contrast sensitivity. However, a new contrast sensitivity vision test chart was recently developed. That contrast sensitivity test chart can provide contrast sensitivity functions (CSF) similar to the video systems', but it is as quick and simple to use as present letter acuity charts (2). Normal population data has been obtained from this chart from 149 observers. Further, this chart has been tested in clinical settings and the resulting CFS's show characteristic losses for amblyopia, multiple sclerosis, cataracts, and glaucoma that are similar to those obtained using video systems. These initial results support the usability of the contrast sensitivity chart as a clinically valuable diagnostic tool.

© 1985 Optical Society of America