ⓘ Radiation retinopathy

                                     

ⓘ Radiation retinopathy

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.

Exposure to doses of 30-35 Gy gray or more is usually required to cause clinical symptoms, however, retinopathy may develop after as little as 15 Gy of external beam radiation. It is reported that the safe dose of 30 Gy 3.000 rad: * 10 to 1.000 rad per week in five 2 Gy fractions of 200 rad.

                                     
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