Choroidal Nevus
A choroidal nevus is a flat (and often pigmented) "mole" inside the eye. A nevus occurs in the eye just as a freckle or mole can occur on the skin. A nevus is usually benign and dark in color. A choroidal nevus is found inside the eye within the choroidal vessel layer (deep to the retina). Choroidal Nevi are common and occur in about 5 to 10 percent of the population. Most new choroidal nevi are photographed and followed regularly so they can be watched for growth. The chance of a nevus converting into a melanoma is extremely low (1/20,000).