Retinal Vascular Caliber and Age-related Macular Degeneration in an Indian Population from Singapore

Abstract

PURPOSE: To examine the association between retinal vascular caliber and early age-related macular degeneration (AMD) in an Indian population. METHODS: A total of 3112 Indian participants aged ≥40 years from the population-based Singapore Indian Eye Study who had data available on retinal vascular caliber measurements and AMD status were included. Retinal arteriolar and venular calibers were measured from digital photographs using computer-assisted software according to a standardized protocol. Images of the macular region were graded according to the modified Wisconsin age-related maculopathy grading system. Right eyes were selected for analyses. Binary logistic regression models were used ..