Photographic detection of retinopathy in insulin-treated diabetes. A population study in the city of Tartu, Estonia.

Purpose: To perform a cross-sectional baseline investigation of diabetic retinopathy prevalence and metabolic control.

Methods: Using a register of insulin-dependent diabetes mellitus in Tartu (pop. 104,791), 175 patients were invited to fundus photography; 149 (89%) participated, 99 of them diagnosed with diabetes before the age of thirty.