发明名称 MULTIFOCAL INTRAOCULAR LENSES
摘要 A multifocal intraocular lens is produced which comprises a lens body having a plurality of optical zones which comprises an aspheric optical zone between each add and base power zone thereby providing a gradual transition in the curvature of the optic surface and avoiding abrupt changes in the curvature of the optic.
申请公布号 CA2053403(A1) 申请公布日期 1992.04.13
申请号 CA19912053403 申请日期 1991.10.11
申请人 CHRISTIE, BRUCE;GUPTA, AMITAVA 发明人 CHRISTIE, BRUCE;GUPTA, AMITAVA
分类号 A61F2/16;G02C7/04;G02C7/06;(IPC1-7):A61F2/16 主分类号 A61F2/16
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