Multifocal contact lenses

Details Multifocal contact lenses Multifocal contact lenses

G - Physics

02

C

G02C 7/04 (2006.01)

Patent

CA 2647517

The invention provides methods for correcting presbyopia and lenses for such correction in which production of a full range of multifocal lenses is accomplished using three rotationally symmetric, aspheric back surfaces, the design of which base curves is a function of refractive power.

L'invention concerne des procédés de correction de la presbytie et des lentilles conçues pour une telle correction, la fabrication d'une gamme complète de lentilles multifocales étant réalisée en utilisant trois faces arrières asphériques symétriques en rotation dont la conception des courbes de base dépend de la réfringence.

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