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US20050203619 Aspheric lenses and lens family  
An aspheric IOL for use in an ocular system has no inherent spherical aberration. An aspheric IOL for use in an ocular system has a controlled amount of inherent negative spherical aberration such...
US20070159593 Contact lens  
An easy-to manufacture contact lens exhibiting an excellent axial stability and having a novel ballast mechanism. On the front surface (36) of the contact lens (30), (i) a circular front surface...
US20060001830 Method for designing aspheric spectacle lens  
A method for designing an aspheric spectacle lens includes: designing a spherical spectacle lens, the spherical spectacle lens having a first surface being substantially flat, and a second surface...
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