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[Low-dose radiation, therapy for choroidal neovascularization in age-related macular degeneration].

The efficacy of low-dose radiation was evaluated in the treatment of eyes with subfoveal or juxtafoveal choroidal neovascularization in age-related macular degeneration. Ten eyes of ten patients received a total dose of 14 Gy of 10 MV X-rays in seven fractions and the mean follow-up time was 12 months (range 9 approximately 18 months). Thirteen control eyes of thirteen patients were followed for an average of 18 months (range 12 approximately 24 months). Visual acuity was improved in 2 eyes (20%), unchanged in 3 eyes (30%), and deteriorated in 5 eyes (50%) of treated patients, and it was improved in no eyes (0%), unchanged in 5 eyes (32%), and deteriorated in 8 eyes (50%) of the control patients at their last follow-up examinations. Funduscopic and angiographic findings were improved in 3 eyes (30%), unchanged in 2 eyes (20%), and deteriorated in 5 eyes (50%) of treated patients, and they were improved in no eyes (0%), unchanged in 5 eyes (32%), and deteriorated in 8 eyes (50%) of the control patients. These results suggested that low-dose radiation is beneficial for the management of subfoveal or juxtafoveal choroidal neovascularization in age-related macular degeneration.