The cause of<unk>  is unclear.<unk>  nevi are common (5% of Caucasians), but rarely progress to<unk> .
Uveal melanoma
Diabetic retinopathy
Otosclerosis
Radiation retinopathy
Autoimmune retinopathy
Vitreoretinopathy
Diabetic papillopathy
Sickle cell retinopathy