Radiation retinopathy is damage to retina due to exposure to ionizing radiation. Radiation retinopathy has a delayed onset, typically after months or years of radiation, and is slowly progressive. In general, radiation retinopathy is seen around 18 months after treatment with external-beam radiation and with brachytherapy. The time of onset of radiation retinopathy is between 6 months to 3 years.[2]
An exposure to doses of 30-35 grays (Gy) or more is usually required to induce clinical symptoms, however, retinopathy may develop after as little as 15 Gy of external-beam radiation. A reported safe dose is 30 Gy (3,000 rad): 10 Gy (1,000 rad) per week in five fractions of 2 Gy (200 rad).[1]
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Radiationretinopathy is damage to retina due to exposure to ionizing radiation. Radiationretinopathy has a delayed onset, typically after months or years...
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Chittum, ME; Wells, CG (15 May 1988). "Photocoagulation treatment of radiationretinopathy". American Journal of Ophthalmology. 105 (5): 470–8. doi:10...
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