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前部缺血症(anterior segmeat ischemia)是视网膜脱离手术后一组严重的并发症,本并发症也可发生于眼外肌手术与睫状体冷凝术(360°)之后,一般认为本并发症是由于电凝、冷凝、直肌的切断、涡状静脉的阻塞、环扎术及巩膜扣带术(scleral luckhing)等所致。发病机理:视网膜脱离手术后引起眼球前部缺血症是眼球前部灌注不良的结果,其原因是由于睫状前或睫状长动脉的血流输入的减少,或由于涡状静脉血流排出的减少,或两者兼有。环扎术压迫整个眼球,较局部扣带术更易发生血流障碍,因此更
Anterior segmental ischemia is a serious group of complications after retinal detachment surgery. This complication may also occur after extraocular muscle surgery and ciliary body condensation (360 °). It is generally accepted that this complication It is due to electrocoagulation, condensation, rectus muscle cut off, vortex veins obstruction, cerclage and scleral buckling (scleral luckhing) and so on. Pathogenesis: retinal detachment surgery caused by pre-ocular ischemic anterior eye perfusion is poor, the reason is due to the pre-ciliary or ciliary long artery blood flow input reduction, or due to vortex venous blood flow Decrease, or both. Cerclage oppression of the entire eye, more prone to local buckling than the blood flow disorders, so more