Radiation retinopathy--a case report.

Radiation retinopathy is one of ocular complications in radiation therapy for many diseases. It is a slowly progressive, delayed-onset disease of retinal blood vessels. A 49 year-old Chinese female suffered from blurred vision for 2 years progressively. The best corrected visual acuity was 0.02 and 0.06 in her right and left eyes respectively. Ophthalmic fundus examination showed hard exudate, retinal hemorrhage, and macular edema in both her eyes. Tracing back her history, she had nasopharyngeal carcinoma and received irradiation treatment 11 years ago. She denied diabetic mellitus or other systemic disease. After laser photocoagulation treatment, she had better vision with the best corrected visual acuity 0.2 and 0.3 in her right and left eyes respectively 1 year later.