Abstract

Several labs are investigating noninvasive measures of retinal function which predict onset of exudative age-related maculopathy (ARM).^1,2,3,4 The goal is to identify those at risk so that laser photocoagulation is not delayed when symptoms first appear. Three psychophysical performances have been associated with development of ARM-- loss of absolute (dark adapted) foveal sensitivity to long wavelength light,^1,2 loss of S-cone sensitivity,² and change in color discrimination.⁴ We report here that flicker sensitivity to long-wavelength, low spatial frequency light is also affected in eyes at risk for ARM.

© 1990 Optical Society of America