Acanthamoeba endophthalmitis in acquired immunodeficiency syndrome

PURPOSE: To report the findings of Acanthamoeba endophthalmitis in a patient with acquired immunodeficiency syndrome (AIDS). METHODS: A 35-year-old man with AIDS and Acanthamoeba infection of the skin and lungs was treated for a granulomatous uveitis in the left eye. RESULTS: The left eye developed mutton-fat keratic precipitates, iris granulomas, cataract, hypotony, and choroidal infiltrates. Aqueous and vitreous specimens were positive for Acanthamoeba cysts. Topical and systemic antiamebic medications decreased the inflammation but failed to control the infection. CONCLUSIONS: Acanthamoeba infection should be considered in the differential diagnosis of uveitis in patients with AIDS.