Dyschromatopsia following cataract surgery.

The authors report on 19 individuals who experienced colour obscurations (dyschromatopsia) following cataract surgery. Although a transient blue discoloration (cyanopsia) might be expected following cataract surgery, an erythropsia (red vision) is more common. Symptoms generally begin after outdoor activity in bright sunlight, vary in duration and are recurrent. It is important to look for a history of drug use, migraine or cerebrovascular accidents.