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92F w acute painless monocular vision loss. What's the diagnosis? ... Central retinal artery occlusion (CRAO)! Retrobulbar "spot sign" with embolus in CRA. Note arterial waveform in normal eye using PW Doppler. #Clinical #POCUS #OcularUS #CRAO #SpotSign #Central #RetinalArtery #Occlusion #Embolus