发明名称 Toric multifocal contact lenses
摘要 The present invention provides a toric multifocal contact lens having a cylindrical optical power to correct astigmatism vision errors and a multifocal power to compensate for presbyopia. A toric multifocal contact lens of the invention has a central axis, an anterior surface having a first central optical zone, and an opposite posterior surface having a second central optical zone. The first central optical zone and the second central optical zone combine to provide a cylindrical optical power to correct astigmatism vision errors and a multifocal power to compensate for presbyopia.
申请公布号 US2004021824(A1) 申请公布日期 2004.02.05
申请号 US20030616376 申请日期 2003.07.09
申请人 YE MING;LINDACHER JOSEPH MICHAEL 发明人 YE MING;LINDACHER JOSEPH MICHAEL
分类号 G02C7/06;G02C7/02;G02C7/04;(IPC1-7):G02C7/04 主分类号 G02C7/06
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