FLICKER DISCRIMINATION IN RELATION TO NATURE AND SEVERITY OF CNS DYSFUNCTION

Abstract
Threshold for a flickering light throughout the visual fields (flicker perimetry) give rise to a quantitative Visual Impairment Scale (VIS) for patients with CNS dysfunction. In 86 patients with known CNS dysfunction it was found that drugs commonly administered to braindamaged patients do not greatly affect the VIS measure and the VIS measure varies as a function of CNS dysfunction characteristics such as focal versus diffuse, progressive versus static, lobe localization, and severity of disorder. From auth.