A cancerous eye can take on a variety of appearances, depending on the type and severity of the cancer. Generally, the eye may appear red, swollen, and painful. A discoloration or growth on the surface of the eye may also be visible.
In the case of a malignant melanoma, a dark lesion on the iris or conjunctiva may be present. This may be a flat spot or a raised bump. It can range in color from dark brown to black, and can have a variety of shapes such as a circle, oval, or irregularly shaped mass. In some cases, the tumor may be small or may not be visible at all.
In the case of intraocular lymphoma, the outward signs may be subtle. There may be an increase in eye pressure, inflammation, and blurred vision. In some cases, the tumor may be visible as a white-gray mass in the back of the eye or in the vitreous humor.
In the case of retinoblastoma, the most common form of eye cancer in children, early signs may include a white pupil in the affected eye, a red or swollen eye, and reduced vision. As the tumor grows, it can cause the eye to bulge outward.
Regardless of the type of cancer, it is important to seek prompt medical attention if any changes in the eye are noticed. Early diagnosis and treatment can help to reduce the risk of serious complications and preserve vision.