Abstract
Purpose To report a case of embolic cilioretinal artery occlusion caused by carotid artery dissection. Design Interventional case report. Methods A 38-year-old woman presented with acute visual loss in her right eye. Funduscopy showed a cilioretinal artery occlusion, which was confirmed by a fluorescein angiography. An embolus was found in the distal segment of the vessel. Results Color Doppler images of right internal carotid artery (ICA) disclosed a pseudolumen, suggesting a diagnosis of carotid dissection. Retrobulbar color Doppler image showed relative low flow velocity in the ophthalmic artery without flow reversal. Magnetic resonance angiography and cerebral angiogram showed total occlusion of the right ICA. Follow-up visual field examination revealed an inferior central defect fed by the cilioretinal artery. Conclusion The pathogenesis of retinal artery occlusion caused by carotid dissection may be embolic or hemodynamic. In our case, a permanent visual defect was related to embolic occlusion of the cilioretinal artery.
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