Rapidly progressive cataract and iris atrophy during treatment of Acanthamoeba keratitis.

Purpose: To identify characteristics associated with cataract occurring during the course of Acanthamoeba keratitis.

Design: Retrospective observational case series.

Participants: Eighty-one laboratory-confirmed patients with Acanthamoeba keratitis.

Modulation of sensory photophobia in essential blepharospasm with chromatic lenses.

Purpose: To determine the effect of photochromatic modulation with tinted lenses on the sensory symptoms of photophobia in blepharospasm patients.

Design: Nonrandomized case-control study.

Participants: Thirty-four subjects (24 benign essential blepharospasm patients and 10 normal controls).