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对64例72眼原发性青光眼滤过术后眼压不降的原因进行分析，结果表明各种原因所致滤过泡不形成或形成不良33眼（46．0％），睫状环阻塞性青光眼14例17眼（23．6％），引流道失效19眼（26．4％），包裹性囊样包3眼（4．2％）。其中46％以上的术后眼压不降病例是可以避免的，关键在于提高手术操作技能，术前术后恰当处理。术中术后抗代谢药物和应用可调整缝线是非常有用的措施。
Analysis of the causes of non-drop in intraocular pressure in 64 eyes of 72 eyes with primary glaucoma was performed. The results showed that the filtering bleb was not formed or formed in 33 eyes (46.0%) due to various reasons, and the ciliary ring obstruction Fourteen eyes (23.6%) had glaucomatous glaucoma, 19 eyes (26.4%) had drainage tunnel failure, and 3 eyes (4.2%) had encapsulated saclike cysts. 46% of which postoperative intraocular pressure non-drop cases can be avoided, the key is to improve surgical skills, preoperative and postoperative appropriate treatment. Postoperative anti-metabolite drugs and application of adjustable sutures are very useful measures.