方法：青光眼患者115例122眼随机分为2组：治疗组55例60眼，术中巩膜瓣采用L形单针缝合法，对照组60例62眼，术中巩膜瓣采用矩形两针缝合法。术后观察眼压、前房深度、滤过泡形态等，随访6～36mo。

结果：术后眼压情况：直至术后1mo，治疗组与对照组之间差异有统计学意义(P<0.05)，到术后3，6mo两组差异无统计学意义(P>0.05)； 术后前房情况：术后2wk之前，对照组的前房形成情况要好于治疗组，然其差别无统计学意义(P>0.05)； 术后滤过泡情况：术后6mo滤过泡形成情况治疗组好于对照组(P<0.01)。

结论：L形巩膜瓣单针缝合法术后虽可出现短时的浅前房，但在控制眼压及滤过泡形成方面较传统两针缝合法有明显的优势。

METHODS: Totally 115 glaucoma patients 122 eyes were randomly divided into 2 groups: the treatment group of 55 patients(60 eyes), the scleral flap surgery using the L-shaped, single-needle suture method, the control group of 60 patients(62 eyes), intraoperative scleral flap using rectangular shape with two-needle suture. Postoperative intraocular pressures(IOP), anterior chamber depth, filtering bleb shape were followed up for 6 months to 36 months.

RESULTS: The postoperative IOP: until postoperative 1 month, the difference between the treatment group and the control group was statistically significant(P<0.05). In the 3rd month and 6th month post-operation, the difference between two groups was not statistically significant(P>0.05); postoperative anterior chamber depth: until postoperative 2 weeks, the formation of anterior chamber of the control group was better than the treatment group, yet the difference was not statistically significant(P>0.05); postoperative bleb situation: In 6th month postoperatively, the formation of filtering bleb in treatment group was significantly better than the control group(P<0.01).

CONCLUSION: L-shaped scleral flap using single-needle stitching, although there may be a temporary shallow anterior chamber, has a obvious advantage over the traditional two-needle suture method in IOP control and filtering bleb formation.