Retinal arterial macroaneurysm

Retinal arterial macroaneurysms (RAMs) are acquired focal round fusiform dilatation of the retinal arterioles that occur at branch points or arteriovenous crossing. RAM most commonly affects the superotemporal retinal artery. Although RAM is usually a self-resolving condition in which most patients are asymptomatic, acute vision loss can occur from exudation, ede-ma, retinal hemorrhage, or vitreous hemorrhage. Treatment should consider the lesion characteristics of RAM. Observation, antiangiogenics, and surgical intervention are current options to manage symptomatic RAM.