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目的：评价视网膜玻璃体手术中利用原裂孔气液交换联合C3F8气体眼内填充治疗复杂性视网膜脱离的效果。方法：对51例（51眼）复杂性视网膜脱离患者采用环扎加压术加玻璃体切除术、利用原裂扎进行气液体交换（Fluid-Airexchange简称FA）后眼内填充C3F8气体，其中22例（22眼）行完全FA术，29例（29眼）行不全FA术。结果：观察术中并发症及术后1周眼内气量、眼压及视网膜复位情况,全FA组与不全FA组比较术后第1天眼内气体充满及始终未充满病例有明显差异（P＜0．05），其余情况均无明显差异（P＞0．05）。结论：利用原裂孔进行气液交换，并采用不同剂量C3F8眼内填充是一种较为简单可行的手术方法。
OBJECTIVE: To evaluate the effect of retinal vitreous surgery using gas-liquid exchange of primary fissures combined with intraocular filling of C3F8 gas in the treatment of complex retinal detachment. Methods: 51 eyes (51 eyes) complicated with retinal detachment were treated with cerclage and vitrectomy, and C3F8 gas was infused into the eye with fluid-Airexchange (FA). Among them, 22 cases (22 eyes) underwent complete FA and 29 (29 eyes) underwent FA. Results: The intraoperative airway pressure, intraocular pressure (IOP) and retinal reattachment (IOP) were observed during the operation and one week after operation. There was a significant difference between the whole FA group and the incomplete FA group on the first day after operation (P < 0.05), the rest had no significant difference (P> 0.05). Conclusion: It is a simple and feasible surgical method to use the original hole for gas-liquid exchange and different doses of C3F8 intraocular filling.