老年性白内障小切口摘出术中连续环形撕囊的应用

目的探讨老年性白内障小切口摘出术中连续环形撕囊的效果和优点。方法老年性白内障348例348眼随机分成2组:连续环形撕囊组(观察组)174例(174眼)和开罐式截囊组(对照组)174例(174眼),观察2组术后视力、脱盲率(视力≥0.05)、脱残率(视力≥0.3)和术中?术后主要并发症的发生情况。结果术后视力≥0.05者,观察组166眼,脱盲率为95.4%;对照组162眼,脱盲率为93.1%,2组间无统计学差异(2χ=0.85,P>0.05)。术后视力≥0.3者观察组150眼,脱残率为85.1%;对照组133眼,脱残率为76.4%,2组间有显著差异(2χ=5.47,P<0.05)。术中后囊破裂者观察组8眼,对照组18眼,2组间有显著差异(2χ=4.16,P<0.05)。观察组术后并发症发生率明显低于对照组(2χ=8.04,P<0.01),其中术后持续性高眼压发生率观察组明显低于对照组(2χ=4.05,P<0.05)。结论在老年性白内障小切口摘出手术中,应用连续环形撕囊法,并发症少,可作为首选方法。

Application of the continuous circular capsulorhexis in small incision senile cataract extraction

Objective To explore the effect and advantages of using the continuous circular capsulorhexis（ CCC ） in senile cataract extraction with small incision. Methods Three hundred and forty-eight cases of senile cataract（348 eyes） were divided into the continuous circular capsulorhexis group （ observation group） and the open cut-off tank capsule group （ control group）, 174 cases（ 174 eyes） in each group. The postoperative sight, the rate of dis-blindness and dis-crippledom,intraoperative and postoperative complication were observed. Results The postoperative visual acuity was above 0.05 in 166 eyes in observation group,the rate of dis-blindness was 95.4% ,and this was 93.1% in control group,there was no significant difference between two gruups（x^2 = 0.85, P 〉 0. 05 ）. The postoperative visual acuity was above 0. 3 in 150 eyes in observation group, and 133 eyes in control group,the the rate of dis-crippledom was 85.1% and 76.4% in observation and control group respectively,there was significant difference between two groups （X^2 = 5.47, P 〈 0.05 ）. The posterior capsule ruptured in 8 eyes during operation in observation group, and 18 eyes in control group, there was significant difference between two groups （X^2 = 4.16, P 〈 0. 05 ）. The rate of postoperative complications was lower obviously in observation group than this in control group（x^2 = 8.04 ,P 〈0.01 ） ,and the rate of postoperative durative bulbi hypertonia was lower obviously in observation group than this in control group（x^2 = 4.05, P 〈 0.05 ）. Conclusion The application of continuous curvilinear capsulorhexis in the senile cataract extraction with small incision surgery can be used as the preferred method with fewer complications.