关键词: 颈内动脉夹层; 视网膜中央动脉阻塞; 头痛

Abstract: Central retinal artery occlusion caused by internal carotid artery dissection is rare. This paper described the diagnosis and treatment process of a middle-aged male patient who experienced sudden reduction in vision in the right eye accompanied by headache for one week. The patient lacked high-risk factors for cardiovascular and cerebrovascular diseases. The fundus examination confirmed central retinal artery occlusion. Diagnosed with right internal carotid artery dissection combined with left vertebral artery dissection through cranial CTA and cervical artery HR-MRI. The patient was diagnosed with central retinal artery occlusion caused by right internal carotid artery dissection. After antithrombotic therapy, the patient did not experience subsequent cardiovascular or cerebrovascular events, and follow-up images revealed complete recanalization of the dissecting arteries. This paper aims to alert clinicians that for patients without risk factors for cardiovascular and cerebrovascular diseases, sudden headache accompanied by unilateral vision loss should raise the suspicion of internal carotid artery dissection.

Key words: Internal carotid artery dissection; Central retinal artery occlusion; Headache