Secondary Glaucoma Resulting From Choroidal Melanoma in a Patient With Congenital Nevus of Ota

This case highlighted the importance of a rare malignant tumor that can accompany a nevus of Ota. Patient symptoms can vary from visual loss to a painful eye. Physician must be aware of the disease and include melanoma in the differential diagnosis in patients with a nevus of Ota. Thorough eye examination is important. Ocular ultrasonography is feasible, simple, and crucial for diagnosis. Accurate staging is vital for choosing the correct treatment strategy to save the patient's life.