Abstract:
Ocular ischemic syndrome (OIS) is a disease that develops when tissue hypoperfusion and hypoxia
occur due to stenosis, occlusion of the common or internal carotid artery. OIS began to be widely studied
in the mid-twentieth century as a separate nosology. Authors such as Hedges, Kearnst, and Hollenhorst
(1963) first reported this in their study, calling the condition “venous stagnant retinopathy”. OIS was
diagnose in 5% of patients with unilateral stenosis or occlusion of the internal carotid artery.
