Abstract

目的 研究不同材料和不同设计的人工晶状体植入术后3年的后囊膜混浊(posterior capsular opacification,PCO)发生率及PCO形态.方法 回顾性研究132眼老年性白内障患者,由同一医生进行超声乳化联合人工晶状体(intraocularlens,IOL)植入术,根据IOL的不同分为4组:Storz Hydroview H60M组(33眼),Silicone折叠式硅胶IOL组(29眼),AcrySof三片式IOL组(36眼)和聚甲基丙稀酸甲酯(polymethyl methacrylate,PMMA)组(34眼).术后3年随访患眼的最佳矫正视力(best corrected visual acuity,BCVA),扩瞳后采集PCO数码图像,分析不同IOL组PCO的形态及PCO发生率.结果 各种IOL的PCO形态各异,H60M组和AcrySof组分别有10眼和15眼后囊形成皱折,而Silicone和PMMA组为片状混浊.虽然各组BCVA和BCVA下降率差异没有显著性(P>0.05),但PCO发生率差异有非常显著性,分别是AcySof组5.6%,Silicone组30.3%,H60M组31%和PMMA组55.9%.结论 AcrySof疏水丙烯酸酯三片式折叠IOL,有直角边缘设计,术后3年能明显降低PCO的发生。

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