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目的:对比研究衍射型多焦点和单焦点人工晶体眼的对比敏感度和高阶像差.Purpose:To compare high-order aberration and contrast sensitivity in pseudophakic eye with a diffractive multifocal intraocular lens(IOL)or a conventional monofocal IOL.方法:所有患者按照植入的人工晶状体类型分成多焦组和单焦组.多焦组植入衍射型多焦点人工晶状体AcrySof ReSTOR(Alcon),72例(109眼);单焦组植入单焦点人工晶状体AcrySof SA60AT(Alcon),88例(130眼).术后随访6-24月,观察远近视力,脱镜率,对比敏感度,高阶像差.