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一、颈动脉闭塞有哪些眼部表现?1.暂时性黑朦:为一种周期性、间歇性、偶发性视力丧失,通常仅累及单眼,发作数分钟至十数分钟可恢复。2.视网膜中心动脉压降低:当颈内动脉狭窄达90%或更多时,同侧的视网膜动脉压可较对侧的正常眼低50%或更多。3.视网膜栓塞:颈动脉粥样溃疡损害的脱落物可以引起微小动脉栓塞。这些脱落物可以是胆固醇结晶,也可以是纤维素—血小板栓子。4.静脉郁滞性视网膜病变:主要包括微动脉瘤、小的出血点和新生血管斑,网膜主要静脉色暗而扩张。微动
First, the carotid artery occlusion What are the eye manifestations? 1. Temporal darkness: a cyclical, intermittent, occasional loss of visual acuity, usually involving only the monocular, episodes of minutes to ten minutes to recover. 2. Central retinal artery pressure decreased: When the internal carotid artery stenosis of 90% or more, ipsilateral retinal arterial pressure than the contralateral normal eye 50% or more. 3. Retinal embolism: Carotid artery atherosclerosis lesions can cause minor arterial embolism. These shedding can be cholesterol crystals, but also cellulose-platelet emboli. 4. Vein stasis retinopathy: mainly include aneurysm, a small bleeding point and neovascular plaque, the major retinal vein dark color and expansion. Fretting