Analysis of a comprehensive diabetic retinopathy screening model for rural and urban diabetics in developing countries

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Abstract
Aim: To present an analysis of a screening model for diabetic retinopathy and compare the results of screening between rural and urban populations. Methods: Between June 2003 and September 2004, 51 diabetic retinopathy screening camps (rural, 25; urban, 26) were conducted in three southern districts of India. The target population, aged 30 years and above, underwent comprehensive eye evaluation and those with referable diabetic retinopathy (proliferative diabetic retinopathy, severe non-proliferative diabetic retinopathy, severe diabetic macular oedema, or a combination of these) were referred to the base hospital for further treatment. Results: Among 7716 diabetic subjects, the age and sex adjusted prevalence of diabetic retinopathy was 18% in the rural areas and 17% in the urban areas. The prevalence of referable retinopathy was 6.8% in rural areas and 4.6% in urban areas (pConclusions: The study describes a comprehensive diabetic retinopathy screening model which can identify sight threatening retinopathy and provide necessary treatment for rural and urban populations.