chromatopsia
n. an aberration in color vision in which there is excessive visual sensitivity to one color, such that objects appear tinged with that color. Chromatopsia is caused by drugs, intense stimulation, or snow blindness, and it can occur after eye hemorrhages, cataract extraction, electric shock, or optic atrophy. There are several forms: erythropsia (red vision), chloropsia (green vision), xanthopsia (yellow vision), and cyanopsia (blue vision). Also called chromopsia.