title: Aversion to daytime illumination in patients with congenital achromatopsia.
abstract: The aversion to daytime illumination in patients with congenital achromatopsia is not well understood. In the present study, we used a magnitude estimation procedure to compare the perceived brightness for 5 congenital achromats and for seven normal subjects. Contrary to the patients' beliefs, results suggest patients' brightness estimates are similar to those of normal subjects.
mesh_terms: D000293:Adolescent; D000328:Adult; D001362:Avoidance Learning; D002648:Child; D003117:Color Vision Defects / Q000151:congenital* / Q000523:psychology; D006801:Humans; D008029:Lighting; D008875:Middle Aged; D014796:Visual Perception