This 77YO female presented with this completely asymptomatic yet prominent retinal vascular loop. Observation was recommended.
Learning Points:
These benign congenital prepapillary vascular loops can be unilateral or bilateral. Although usually just an incidental finding, they can rarely cause a branch arterial or venous occlusion (see Retinal Cases Brief Rep 2014:8;124-126 and Ophthalmology 2020;127:124-126).
They should also not be confused with disc neovascularization, which consists of much smaller caliber vessels that leak on fluorescein angiography.
