Are retinal microvascular caliber changes associated with severity of coronary artery disease in symptomatic cardiac patients?

Objectives: Recent population-based studies have shown that retinal vascular caliber may predict the risk of clinical coronary artery disease (CAD) events. Whether this association is related to macro- or microvascular mechanisms remains unknown. We investigated the relationship of retinal vascular caliber with severity and extent of CAD in symptomatic cardiac patients.