Cystoid macular edema as the initial manifestation of choroidal melanoma.

Uveal melanomas are a common clinical entity that initially present in a variety of ways. Cystoid macular edema is caused by many conditions, but it is rarely associated with uveal melanoma. We report two cases of patients that presented with visually significant cystoid macular edema that was later found to be secondary to choroidal melanoma. We describe the patients' course and treatment and provide a mechanism for the potential cause of edema in patients with uveal melanoma.