Improved pattern toric lens

Details Improved pattern toric lens Improved pattern toric lens

G - Physics

02

C

G02C 7/04 (2006.01)

Patent

CA 2111466

An improved contact lens (1) having an optic zone (4) and a radial planar zone (5) such that the radial planar zone has an array of contours which are defined by a waveform or waveforms (2, 3) comprising crests and troughs on the back and/or front surface of the lens. The waveform(s) provide(s) means to enable proper location and orientation of the lens on the eye of a wearer by interaction between the lens, the eye and an eyelid and facilitating increased gas transmission through the lens.

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