SHIFT STABILISED CONTACT LENSES AND METHODS FOR DESIGNING SAID LENSES Russian patent published in 2013 - IPC G02C7/04 

FIELD: physics.

SUBSTANCE: contact lens according to the invention consists of an optical zone, a lens periphery, a first and a second thickened zone on the lens periphery, wherein the first and second thickened zones lie asymmetrically about each other, wherein the thickness of each of the thickened zones linearly or nonlinearly increases, starting from the upper part of the zone to the maximum value, and then linearly or nonlinearly falls towards the lower part of the zone.

EFFECT: design of contact lenses which are better held in the required position on the eye compared to traditional stabilised lenses.

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