To the Editor: In the aftermath of the blizzard of'83 (Feb. 11), many patients in the Baltimore area who had aphakia or pseudophakia reported the acute onset of “red vision” after outdoor activity, such as snow shoveling. Visual acuities were unaffected, and funduscopic examination revealed no macular abnormalities. This phenomenon, referred to as erythropsia, is a form of chromatopsia, in which there is a perversion of color vision. Chromatopsia may be seen as a manifestation of drug intoxication (i.e., digitalis),1 in association with jaundice, subsequent to intraocular hemorrhage, or in the context of focal cerebral pathology.2 In addition, patients.
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