Progressive addition lenses

Details Progressive addition lenses Progressive addition lenses

G - Physics

02

C

G02C 7/02 (2006.01) G02C 7/06 (2006.01)

Patent

CA 2279041

The present invention relates to ophthalmic lenses. In particular, the invention provides ophthalmic lenses with reduced astigmatism. The lenses are composed of a surface and a compensating surface, the surface geometries of which are defined by segments of a size suitable to be defined by a tenth order x,y polynomial with Zernike coefficients.

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