[Coats disease of adult onset].

CASE REPORT: We report a 66-year-old male who exhibited an exudative retinal vasculopathy, diagnosed as Coats disease of adult onset, treated with laser photocoagulation. DISCUSSION: Most cases of Coats disease are diagnosed in childhood. When this entity appears in adults it usually exhibits a more benign clinical course. Diagnosis of this condition must be considered in those patients showing a retinal vasculopathy with a marked exudative component. Treatment is indicated if the fovea is threatened by lipid deposition.