radiation retinopathy
Delayed complication of ocular radiotherapy characterized by retinal vascular damage and vision loss.
Full Definition
A progressive retinal vascular disease that develops months to years after ocular radiotherapy, particularly following plaque brachytherapy or external beam radiation. The condition is characterized by microangiopathy, cotton wool spots, retinal hemorrhages, hard exudates, and eventual capillary non-perfusion similar to diabetic retinopathy. Severe cases may develop neovascularization, vitreous hemorrhage, and tractional retinal detachment. The risk correlates with radiation dose to the retina and may require treatment with anti-VEGF therapy or laser photocoagulation.
Usage
Usage note: Document the time interval from radiation treatment and the specific retinal changes observed.
In Context
- "The patient developed radiation retinopathy eighteen months after plaque therapy, requiring anti-VEGF treatment." — complication management
- "Fluorescein angiography confirmed radiation retinopathy with areas of capillary non-perfusion and macular edema." — diagnostic imaging report