5 Minute Sono·October 15, 2020·1 min read5 Minute Sono – Central Retinal Artery Occlusion In this Five Minute Sono, we go over how to use bedside ultrasound to diagnose central retinal artery occlusion (CRAO) by identifying the “retrobulbar spot sign” (RBSS). Peer reviewed by Lori Stoltz, MD on 9/30/20 Other 5MS Ocular Videos Other Topics All 5MS Videos