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Year : 2007  |  Volume : 3  |  Issue : 1  |  Page : 12-16

Age related macular degeneration: A study of patients managed with radiotherapy

1 Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, India
2 Zen Eye Center, Mumbai, India

Correspondence Address:
Anusheel Munshi
Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-1482.31965

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Introduction: Age-related macular degeneration (ARMD) is the leading cause of blindness in the west. Radiotherapy affects the evolution of exudative macular degeneration directly by its effect on the endothelium and inflammation modulation. We conducted a retrospective study to evaluate the improvement in visual acuity and healing of sub retinal neovascular membrane (SRNV) following fractionated radiotherapy. Materials and Methods: 47 patients (58 eyes) of ARMD were retrospectively analyzed. One of the following radiotherapy fractionation schedules was employed in all the patients in this study. a) 15 Gy /5 fractions/1 week (five patients) b) 20 Gy/5 fractions/1 week (19 patients) c) 22.5Gy/5 fractions/1 week (21 patients) d) 25 Gy/5 fractions/1 week (two patients). VA and funduscopy was taken at each follow-up for objective improvement and to assess the healing of SRNV. Results: The median follow-up was 7.23 months. The mean improvement in the VA in the entire group was of 0.44 line. (Median 1, SD 1.04). Overall 75% of the eyes showed either steady vision or an improvement in subjective vision analysis. The deterioration free survival was significantly better in the group that had a relatively short duration of symptoms ( P =0.01). Scarring at presentation was a significant adverse factor for improvement in vision after radiotherapy ( P = 0.001). Conclusions: In patients of ARMD treated with radiotherapy, the initial duration of symptoms and scarring of eyes at presentation were significant prognostic variables for improvement in VA after radiotherapy.

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