青光眼滤过术中巩膜瓣燕尾状切开的临床观察

Clinical observation of "swallow-tail" scleral flap in trabeculectomy

目的 研究和评价青光眼小梁切除术中巩膜瓣燕尾状切开的临床效果。方法 观察组 35例 (4 8只眼 ) ,对照组 38例 (4 8只眼 ) ,两组在性别、平均年龄、青光眼分类和术前平均眼压方面差异无显著性 (P >0 .0 5 )。并将两组术后眼压控制情况、有效滤过泡形成率及前房形成情况进行比较。结果 眼压控制率在观察组为 95 .8% ,对照组为 83.3% ,两组比较差异有显著性 (P <0 .0 5 ) ;有效滤过泡形成率在观察组为 91.7% ,在对照组为 75 % (P <0 .0 5 ) ;前房形成情况无显著性差异 (P >0 .0 5 )。结论 该技术能在术后早期灵活地控制滤过量 ,能更直接、长时间地建立良好的房水外引流通道 ,控制降低眼压。

Objective To study and evaluate the outcome of swallow-tail scleral flap in trabeculectomy.Methods 35 cases (48 eyes) in study group were treated by trabeculectomy with 'swallow-tail' scleral flap,38 cases (38eyes) in control group were treated by trabeculectomy with routine size scleral flap.There were no significant differences between two groups with respect to sex,average ages,classification of glaucoma and mean preoperative IOP(P>0.05)/After trabeculectomy,postoperative IOP,filtration blebs and formation of anterior chamber were compared in the two groups.Results The success rate was 95.8% in study group and 83.3% in study group (P<0.05).The percentage of functional filtration blebs was 91.7% in study group and 75% in control group (P<0.05).There were statistically significant differences between two groups.The formation of anterior chamber in two groups was no statistically significant differences.Conclusion It is believed that the new technique used in study group can effectively control postperative outflow.It could not only increase success rate of the filter surgery but also be helpful to the formation of functional filtration blebs.