label: Choroid Melanoma
label_lc: choroid melanoma
description: "A uveal melanoma that arises from the choroid.  It is the most common primary malignant intraocular tumor.  It usually affects Caucasians of northern European descent.  It usually remains asymptomatic for a long period.  When signs and symptoms occur, they include blurred vision, visual field loss, floaters, and ocular pain.  Tumor size is the most important factor that relates to prognosis."