The patient, a 54-year-old man with longstanding untreated gout, developed progressive redness of both eyes, with an ocular burning sensation and visual disturbance. Ophthalmologic examination revealed hyperemia of the conjunctival and episcleral vessels and multiple chalky deposits on the corneal stroma. Polarized light microscopy examination of a scraping from a deposit revealed typical monosodium urate monohydrate crystals. The patient's serum uric acid level was 600 μmoles/liter (normal 223–487). The patient was treated with allopurinol and colchicine, with significant clinical improvement.1