Retinal macroaneurysms.

Five patients had macroaneurysms of the retinal arterioles. These macroaneurysms may be observed without pathologic sequelae or may be associated with circinate retinopathy, intraretinal hemorrhage, subretinal hemorrhage, or intravitreal hemorrhage. They may also evolve into more widespread vascular anomalies resembling adult Coats disease in some respects. Photocoagulation therapy is occasionally indicated.