System and method to reduce surface contact between optic...

Details System and method to reduce surface contact between optic... System and method to reduce surface contact between optic...

A - Human Necessities

61

F

A61F 2/16 (2006.01) B29D 11/00 (2006.01)

Patent

CA 2738223

Embodiments of the present invention provide an intraocular lens with an optic zone having a first surface topology and a haptic zone having a second surface topology. The surface roughness of the haptic zone may be greater than the surface roughness of the optic zone. The surface topology of the optic zone may have a first surface geometry and the surface topology of the haptic zone may have a second surface geometry. The first and second surface geometries may retain lubrication fluid in a space formed therein. The haptics formed by the manufacturing process may have a reduced ability to adhere to the optic zone, such as when the lens is folded or advanced through a cannula.

La présente invention concerne une lentille intraoculaire équipée d'une zone optique présentant une première topologie de surface et d'une zone haptique présentant une seconde topologie de surface. La rugosité de la zone haptique peut être plus importante que la rugosité de la zone optique. La topologie de surface de la zone optique peut présenter une première géométrie de surface et la topologie de surface de la zone haptique peut présenter une seconde géométrie de surface. Les première et seconde géométries de surface peuvent retenir le fluide lubrifiant dans un espace formé en leur sein. La zone haptique formée à l'issue du processus de fabrication peut présenter une capacité réduite d'adhérence à la zone optique, par exemple quand la lentille est repliée ou avance à travers une canule.

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