Full text: Available Index: IMSEAR (South-East Asia) Main subject: Humans / Visual Acuity / Macular Edema / Risk Factors / Follow-Up Studies / Treatment Outcome / Laser Coagulation / Diabetic Retinopathy / Middle Aged Type of study: Etiology study / Observational study / Prognostic study / Risk factors Language: English Journal: Indian J Ophthalmol Year: 1997 Type: Article