| History: This 28 year-old man received radiation therapy to his craniopharyngioma three years ago. He developed a left radiation retinopathy 6 months after the treatment with multiple cotton wool spots and dot-and-blot haemorrhages (features similar to diabetic retinopathy). His left vision remained normal at 6/6 at the last visit without significant macular oedema. Radiation retinopathy is dose-related and is a microangiopathy with dilatation, microaneurysm formation, loss of endothelial cells, endothelial proliferation, and capillary closure. The main cause of poor vision is maculopathy which may be exudative or ischaemic. | |||
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