6mm无缝线切口与非折叠式人工晶体植入术

目的:评价角膜缘后界6mm无缝线巩膜隧道切口白内障超声乳化摘除及非折叠式人工晶体植入手术的疗效。方法:以12点角膜缘后界为切点作6mm水平“一”字形巩膜隧道切口,对50例55眼白内障行超声乳化摘除与聚甲基丙烯酸甲酯非折叠式人工晶体植入手术。其中53眼术毕巩膜切口不作缝线,2眼因后囊膜破裂改为12mm切口囊外摘除术。结果:切口无缝线病例术后1周裸眼视力≥0.6占92.4％,≥1.0占50.9％;术后1个月视力≥0.6占98.1％,≥1.0占67.9％。术后1周与1个月平均散光分别为0.63±0.36D、0.61±0.33D,与术前平均散光0.60±0.48D相比,无明显差别(t检验P>0.05)。结论:角膜缘后界无缝线6mm巩膜隧道切口白内障超声乳化摘除及聚甲基丙烯酸甲酯非折叠式人工晶体植入术早期视力恢复快,术后角膜散光小,值得临床推广。眼科学报1999:15:262-264。

Unfolded Intraocular Lens Implantation through a 6 mm Sutureless Incision

OBJECTIVE: To evaluate the therapeuitic effects of phacoemusification and unfolded iutraoculavr lens (IOL) implantation through a 6 mm sutureless incision. METHODS: A 6 mm sclera tunnel incision was made at 12 o'clock tangent of the posterior limbus and unfolded polymethylmethacrylate(PMMA) IOL implantation was operated in 50 cases (55 eyes); 53 eyes were finished without suture after phacoemusification and 2 eyes were done with extra capsule cataract extration(ECCE) because of the broken posterior capsular. RESULTS: Postoperatively, the visual acuity was 0.6 or more in 92.4% of the eyes and 1.0 or more in 50.9% of the eyes at one week; 0.6 or more in 98.1% of the eyes and 1.0 or more in 67.9% of the eyes at one month. The mean postoperative astigmatism was 0.63 +/- 0.36 D at one week and 0.61 +/- 0.33 D at one month. There was no statistical difference between the mean preoperative astigmatism(0.60 +/- 0.48 D) and postoperative astigmatism at one week and one month (P > 0.05). CONCLUSION: The technique of phacoemusification and PMMA IOL implantation through a 6 mm sutureless incision can reduce early postoperative astigmatism, shorten the period of visual rehabilitation.