The most common cancers involving the eye are metastatic tumors.
Up to 10% of patients with a metastatic carcinoma show ocular involvement when examined by careful ophthalmologic examination.
Cancer of the breast is the most common cancer to metastasize to the eye followed by cancer of the lung and melanoma.
In 30% of cases of metastatic tumors involving the eye, the eye metastasis if the first presentation of the cancer.