巩膜环扎术在孔源性视网膜脱离玻璃体手术中的应用评价

目的 探讨巩膜环扎术在孔源性视网膜脱离(rhegmatogenous retinal detachement,RRD)玻璃体手术中的应用价值。 方法 回顾分析1995～1999年由我院RRD计算机分析系统收录的RRD行玻璃体手术者共254例中有随访记录的118例的临床资料。全部患者均为1次玻璃体手术，按手术中是否进行巩膜环扎分为巩膜环扎组和非环扎组，分别分析各组增生性玻璃体视网膜病变(proliferative vitreoretinopathy,PVR)级别、裂孔位置、不同眼内填充物与视网膜解剖复位率的关系。 结果 118例患者手术后随访1.5个月～3年，平均随访时间为6.5个月。视网膜复位96例，占81.4%,未复位22例，占18.6%。视网膜复位者中巩膜环扎组视网膜复位43例，占44.7%，非环扎组视网膜复位53例，占55.3%。巩膜环扎组与非环扎组PVR不同级别(C,D级)、不同填充物以及PVR C级不同部位视网膜裂孔(裂孔位于赤道前、赤道区或赤道前后均有裂孔)视网膜复位率比较其差异无显著性意义(P＞0.05)。而PVR D级视网膜裂孔位于赤道后者巩膜环扎组与非环扎组比较，非环扎组视网膜复位率高于环扎组，其差别有显著性意义(P＜0.05)。 结论 RRD玻璃体手术中巩膜环扎与否对视网膜脱离手术后视网膜复位率无明显影响。 (中华眼底病杂志, 2002, 18: 212-214)

Evaluation of encircling scleral buckling surgery in rhegmatogenous retinal detachment with vitrectomy

Objective To evaluate the therapeutic effect of encircling scleral buckling surgery in rhegmatogenous retinal detachement (RRD) with vitrectomy. Methods The records of a series of 118 consecutive patients with RRD undergone encircling scleral buckling surgery and vitrectomy between 1995 1999 were reviewed. All of the patients underwent an onece vitrectomy, and they consisted of with encircling scleral buckling group and without encircling scleral buckling group. The difference of rate of retinal reattachment, and the relationship between the reattachment rate and the grade of PVR, position of retinal tear and the different intraocular tamponade substitute in both groups were analysed and compared. The average follow up period was 6.5 mons (1.5 mons 3 ys). Results The rate of retinal reattachment in this series of 118 cases was 81 4% (96/118) in which the encircling scleral buckling group accounted for 44 7% and the group without encircling scleral buckling accounted for 55.3%. There was no statistical difference of rate of retinal reattachment between both groups with PVR C, different intraocular tamponade and various positions of retinal tears, while the rate of retinal reattachment in cases of PVR D and retinal tears posterior to equator in group without encircling scleral buckling was significanthy higher than that in encircling scleral buckling group ( P <0.05). Conclusion The encircling scleral buckling procedure may be unprofitable in increasing the rate of retinal reattachment in vitrectomy for RRD.