To the Editor.—Traditionally, metastatic disease to the eye from any cancer has been thought to be a rare event. Many studies1,2 spanning the past 20 years have found that 10% of patients with systemic breast cancer have choroidal metastatic lesions. These authors have concluded that metastases are the most common malignant tumors of the eye. As the following case report illustrates, recognition of choroidal metastasis is important so that proper therapy can be instituted to preserve vision.
Report of a Case.—A 45-year-old woman was found to have an infiltrating ductal carcinoma of the breast and was treated with right modified radical mastectomy in August 1980. The tumor was pathologically stage I T1, NO, MO, and was estrogen receptor—and progesterone receptor—positive. Results of a funduscopic examination were reported to be normal. Two years later, the patient began to have blurred vision and distortion of the appearance