[Case report of a choroidal osteoma].

Choroidal osteoma caused blurred vision in a 45-year-old man. Ophthalmoscopy showed a characteristic tumor with irregular elevation and of a yellowish color with a vascular network on the surface. Ultrasonic A-scan findings, hyperfluorescence in angiograms and visibility on computer tomograms confirmed the diagnosis, even though the patient's age and sex, and the location of the tumor, were unusual.