Intraocular lens having a haptic that includes a cap

Details Intraocular lens having a haptic that includes a cap Intraocular lens having a haptic that includes a cap

A - Human Necessities

61

F

A61F 2/16 (2006.01)

Patent

CA 2725385

An intraocular lens (30) is disclosed, with an adjustable optic (150) that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic (90) supports the optic around its equator and couples the optic to the capsular bag of the eye. The haptic may include a cap (93) on the anterior and/or posterior surfaces of the lens. The lens may include a force transfer member (160), such as a hinge, that couples forces from the haptic to the cap, so that a radial force on the haptic changes the curvature of the cap. The haptic and optic may be refractive index- matched. The cap may be made of the haptic material, which is stiffer than the optic material, and can influence the deformation of the lens during accommodation. A cap on the anterior surface may produce an axial movement of the lens in an anterior direction during accommodation. The cap may also protect the surfaces of the optic during handling and installation.

Linvention concerne une lentille intraoculaire comprenant une optique ajustable qui change de forme en réaction à une force de déformation exercée par les zonules de lil. Un dispositif haptique supporte loptique autour de son équateur et couple loptique au sac capsulaire de lil. Le dispositif haptique peut inclure un capuchon sur les surfaces antérieure et/ou postérieure de la lentille. La lentille peut inclure un élément de transfert de force tel quune charnière qui couple les forces du dispositif haptique au capuchon de sorte quune force radiale exercée sur le dispositif haptique modifie la courbure du capuchon. Le dispositif haptique et loptique peuvent présenter des indices de réfraction coïncidents. Le capuchon peut être constitué de matériau haptique, plus rigide que le matériau optique, et peut influencer la déformation de la lentille pendant la mise en place. Un capuchon sur la surface antérieure peut produire un mouvement axial de la lentille dans une direction antérieure pendant la mise en place. Le capuchon peut également protéger les surfaces de loptique pendant la manipulation et linstallation. La surface postérieure de la lentille peut être façonnée de telle sorte quelle ne provoque pas un décalage important des contributions de la surface antérieure pendant la mise en place.

Affiliated with

Also associated with

Rating

Intraocular lens having a haptic that includes a cap does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intraocular lens having a haptic that includes a cap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intraocular lens having a haptic that includes a cap will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1464314