Optical Coherence Tomography Angiography Compared to Fluorescein Angiography in Branch Retinal Artery Occlusion

A case of embolic branch retinal artery occlusion (BRAO) was evaluated utilizing both fluorescein angiography (FA) and novel optical coherence topography angiography (OCTA). OCTA demonstrated a well-demarcated area of flow interruption secondary to the retinal artery embolus, as well as capillary nonperfusion in the involved region corresponding to FA findings. Therefore, OCTA can demonstrate vascular features of embolic BRAO correlating to FA findings. In this case, OCTA also revealed an increased perfusion defect in the superficial vascular capillary plexus that was not seen on FA.