Accommodating intraocular lens with integral capsular bag ring
View Patent ↗An intraocular lens (IOL) includes an optic for focusing light, an outer ring for supporting the optic in a capsular bag of an eye and a plurality of radially spaced apart, elongated intermediate members connecting the optic to the outer ring. The intermediate members are configured to convert radial forces exerted by the capsular bag on the support ring into axial movement of the optic, allowing a presbyopic patient to more effectively focus on near objects. The outer ring is preferably contoured to conform to the portion of the capsular bag between the anterior and posterior zonules, and has sufficient axial thickness to contact both sets of zonules. In addition, the edge of the ring includes at least one sharp edge corner to prevent epithelial cell growth toward the optic. In addition, the outer ring may include weakened areas configured to allow consistent and repeatable deformation in response to compressive forces.
1. An intraocular lens for insertion into a capsular bag of an eye, comprising:
an optic having a periphery and centered on an optical axis, the optic adapted to focus light toward a retina of an eye;
a continuous outer ring surrounding the optic and spaced therefrom with voids therebetween; and
a plurality of intermediate members extending between and connecting the optic and the outer ring, each intermediate member of the plurality of intermediate members attached to the periphery of the optic along a radial line passing through the optical axis and through the center of the intermediate member having a hinge that is located closer to the outer ring than to the optic.
2. An intraocular lens for insertion into a capsular bag of an eye, comprising:
an optic having a periphery and centered on an optical axis, the optic adapted to focus light toward a retina of an eye;
a continuous outer ring surrounding the optic and spaced therefrom with voids therebetween; and
a plurality of intermediate members extending between and connecting the optic and the outer ring, each intermediate member of the plurality of intermediate members attached to the periphery of the optic along a radial line passing through the optical axis and through the center of the intermediate member, the optic being a multifocal optic.
3. The lens of claim 2 , wherein the optic has a maximum add power that is less than the full add power required for an otherwise identical optic that has not been adapted for accommodating movement.