Erythropsial phototoxicity associated with nonultraviolet-filtering intraocular lenses.

Four patients with monoocular erythropsia (seeing red) caused by excessive exposure to bright light are presented. Each patient had a nonultraviolet (UV)-filtering intraocular lens (IOL) in the involved eye; the fellow eye was either phakic or had a UV-filtering IOL. Each patient had seen a definite red hue to lights (moon, automobile headlights, etc.) only at night after prior prolonged exposure to high-intensity sunlight and only in the eye with a non-UV-filtering IOL.