Astigmatic intraocular lens

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/16 (2006.01) G02C 7/02 (2006.01)

Patent

CA 2612916

The invention relates to an intraocular lens for correcting astigmatic ametropia, said lens having a toroidal refractive front face and a toroidal refractive rear face. The intraocular lens also has a toroidal refractive lens surface, whose intersection curve is aspherical on at least one primary meridian (1, 2). The intraocular lens also comprises a toroidal refractive lens surface with two primary meridians running at an angle to one another that does not equal 90~.

L'invention concerne une lentille intraoculaire pour corriger une mauvaise vue astigmatique, qui présente aussi bien une surface avant à réfraction torique, qu'une surface arrière à fraction torique. La lentille intraoculaire présente en outre une surface lenticulaire à réfraction torique dont la ligne d'intersection est décrite par une asphère. La lentille intraoculaire présente pour finir une surface lenticulaire à réfraction torique comportant deux méridiennes principales, qui forment un angle intermédiaire différent de 90°.

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