Color vision deficiency (also called color blindness) is a vision disorder in which a person…
Cancer cells can spread through the bloodstream or the lymphatic system from a tumor in one area of the body to form a tumor in another part of the body, including in the eye.
A secondary tumor is treated separately from a primary tumor. A doctor may prescribe chemotherapy or radiation therapy to block the growth of or destroy a secondary tumor in the eye. Any loss of vision that occurs before treatment may be permanent.