Contents -- Executive Summary -- Reccomendations -- 1. Background -- 2. Global Prevalence of Diabetes Mellitus and it's complications -- 3. Evidence Base for the Prevention and Treatment of Diabetic Retinopathy -- 4. Principles in Eye Care for Patients With Diabetes -- 5. Principles for Organizing Eye Health System for the Care of Diabetic Retinopathy -- Conclusions -- References -- Annexes