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目的:比较飞秒激光白内障手术与单纯超声乳化术后角膜像差变化及差异.方法:研究包括60名老年性白内障患者(60眼).30眼行飞秒激光白内障手术(2.2mm),30眼行2.2mm单纯超声乳化白内障手术.随访3个月,比较两组术后视力及角膜高阶像差的差异.结果:术后3个月,两组裸眼视力分别为0.06±0.08,0.03±0.05,最佳矫正视力为0.01±0.02,0.01±0.03.使用i-Trace自动像差仪测量术前、术后3mm,4mm及5mm瞳孔直径下角膜高阶像差(HOA),包括总高阶,慧差,球差,三叶草像差.术前各瞳孔直径下两组角膜各高阶像差均无统计学差异.术后3个月,3mm总高阶为0.10±0.02,0.09±0.04;慧差0.05±0.04,0.04±0.02;球差0.03±0.02,0.04±0.01;三叶草像差0.04±0.03,0.05±0.02.4mm总高阶为0.017±0.05,0.016±0.04;慧差0.09±0.06,0.07±0.03;球差0.05±0.03,0.06±0.03;三叶草像差0.07±0.03,0.08±0.06.5mm总高阶为0.46±0.11,0.44±0.15;慧差0.33±0.13,0.29±0.11;球差0.19±0.08,0.21±0.10;三叶草像差0.16±0.08,0.12±0.05.术后各瞳孔直径下两组角膜各高阶像差均无统计学差异.