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Neuro-Ophthalmic Presentations of Common Carotid Artery Occlusion: A Case Series.

C ommon carotid artery (CCA) occlusion (CCAO), as opposed to internal carotid artery (ICA) occlusion (ICAO), is a rare entity with a reported incidence of only 0.4%–3% in patients with symptomatic cerebrovascular ischemic disease (1,2). The blood supply to the eye derives from the ICA, and hence, a CCAO can present with ischemic ocular symptoms (e.g., amaurosis fugax, branch or central retinal artery occlusion (CRAO), ophthalmic artery occlusion, or ocular ischemic syndrome). We report 2 cases of CCAO with neuro-ophthalmic presentations. To the best of our knowledge, this is the largest such series of patients in the English language ophthalmic literature.