Teaching Video NeuroImage: Amaurosis Fugax Due to Recurrent Central Retinal Artery Occlusion by Microemboli
2022
Abstract
A previously healthy 71-year-old woman with hypercholesterolemia and current tobacco use presented with transient painless vision loss in the left eye without other neurologic abnormalities. The 30-seconds episodes, followed by a recovery, repeatede in 2- to 3-minute intervals.
Microemboli passing through centra retinal artery (CRA) vaskulature (video 1) originated from a complicated atherosclerotic plague in the left internal carotid artery /figure). After receiving intravenous thrombolysis 5 hours after symptom onset, she reported a scotoma in the inferior part of her left eye, which persisted2 years later.
Retinal embolism from carotid artery disease is the most common cause of CRA occlusion.