An abnormal growth or mass that occurs in or next to the eye. Tumors can be both benign and malignant and primary or secondary (from other organs). They include the dermoid cyst, capillary hemangioma, cavernous hemangioma, choroidal melanoma, retinoblastoma and lymphoma. Symptoms can include blurred vision, a bulging eye, double vision, floaters, foreign body sensation, pain or discomfort in the eye, the lid or around the eye, swelling of the lid or around the eye, a red or pink eye, ptosis, vision loss, limited eye or lid movement, a white or cloudy spot on the eye, and an iris defect. Various treatment options exists depending on the type of tumor.