Optical Coherence Tomography Angiography in Branch Retinal Artery Occlusion

Abstract

Optical coherence tomography angiography (OCTA) is a non-invasive alternative method used in the diagnosis and follow-up of acutebranch retinal artery occlusion to show changes secondary to ischemia. We report a case with acute branch retinal artery occlusion. A52-year-old man presented with a complaint of sudden-onset visual loss in the right lower quadrant of the left eye for the previous threedays. Best-corrected visual acuity was 0.4 temporally. Inferonasal visual field deficit was detected with confrontation. Pupillary lightreactions were normal in both eyes and there was no relative afferent pupillary defect. Dilated fundus examination revealed retinal lesionsuggesting superior temporal branch retinal artery occlusion. He was treated with dextran 40 and pentoxifylline. Follow-up fundusfluorescein angiography could not performed because of chronic renal failure; OCTA demonstrated superficial and deep capillary nonperfusionareas and telangiectases in areas corresponding to the artery occlusion.