【摘要】 目的评价超声乳化人工晶状体植入后环形撕后囊膜预防晶状体后囊膜混浊的临床效果。方法393眼白内障患者,摘出晶状体植入人工晶状体后在后囊膜的旁中心作一穿刺孔,经穿刺孔向后囊膜与玻璃体前界膜之间注入透明质酸钠,沿后囊膜穿刺孔边缘环形撕开一个直径约3mm的圆形孔。术后观察人工晶状体位置、视力、后囊膜、玻璃体前界膜及并发症情况。结果18眼轻度移位,术中13眼玻璃体经后囊膜孔突入囊袋内。术后3个月检查,375眼人工晶状体位置未见明显移位和偏斜。矫正视力≥0.5者307眼,≥0.1者236眼。术后玻璃体前界膜完整者217眼。结论连续线形撕后囊膜可使白内障患者获得视轴透明区,防止视轴区后囊膜混浊。更多还原

【Abstract】 Objective To evaluate clinical efficiency of posterior continuous curvilinear capsulorhexis for the prevention of posterior capsule opacification(PCO) after phacoemulsification.Methods Posterior continuous curvilinear capsulorhexis was performed on 393 eyes of cataract patients.After the removal of cortical material and intraocular lens(IOL) implantation,a perforation was made near the center of the posterior capsule through the equator of IOL.Healon was directed toward the opening and injected into the interspace between the posterior capsule and the anterior limiting membrane of the vitreous,and a posterior capsulorhexis was performed to make a hole with 3 mm diameter.The location of IOL,visual acuity,situations of posterior capsule,anterior limiting membrane of vitreous and complications were observed after operation.Results There were 18 eyes with slight decentration,and vitreous of 13 eyes protruded into capsule through perforation.Three months after operation,no significant decentration of IOL location was found in 375 eyes.Corrected visual acuity be and more than 0.5 was in 307 eyes,be and more than 0.1 was in 236 eyes,and 217 eyes was with complete anterior limiting membrane of vitreous.Conclusion Posterior continuous curvilinear capsulorhexis remain a clear visual axis in the eyes of patients with cataract and prevent posterior capsular opasification of visual axis.更多还原