Transient visual disturbance(TVD) is caused by artery stenosis,or artery embolism and migraine,which lead to reduction of eye blood flow,retinal ischemia and hypoxia.

• 短暂性视觉障碍(TVD)是由于动脉狭窄或栓塞、偏头痛等使眼部血流量降低、视网膜缺血、缺氧引起的。