Intraocular lens with shape changing capability to provide enhanced accomodation and visual acuity
AssigneeJohnson & Johnson Surgical Vision, Inc.
InventorsDaniel G. Brady, Scott J. Catlin, Edward P. Geraghty, Huawei Zhao
Life of this patent
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Abstract
An intraocular lens for providing a range of accommodative vision, an extended depth of focus, or enhanced performance through the asymmetric transfer of ocular forces to the lens. The intraocular lens contains an optic and a haptic. The shape and/or material of the haptic results in the transmission of ocular forces to particular regions in the optic. Greater forces applied to particular regions result in deformation of that region and increased power.
Claims28
An intraocular lens, comprising:
- an optic adapted to focus light on the retina when disposed in the eye, the optic having a first zone having a distance vision power and a second zone being adjustable through a range of powers greater than the distance vision power, the first zone being intersected by the central optical axis, the second zone being off-set from the first zone;
- and
- a haptic, comprising:
- an outer annular member;
- an inner annular member disposed inside at least the second zone of the optic;
- and
- a plurality of arms extending between the inner and outer annular members;
- wherein the intraocular lens is adapted to respond to ocular forces to adjust the power of the second zone.
An intraocular lens, comprising:
- an optic comprising a fixed power region and an add power region;
- a haptic comprising:
- an inner portion having a stiff region disposed inside the fixed power region and a force transfer portion disposed inside the add power region;
- and
- a plurality of arms extending radially away from the force transfer portion toward an outer periphery of the intraocular lens;
- wherein the intraocular lens is adapted to respond to ocular forces to alter the add power region the increase the power of the add power region.
An intraocular lens, comprising:
- an optic adapted to be deformed when subjected to a compressive ocular force;
- a haptic adapted to apply, in response to a uniform annular compressive ocular force, a first compressive force to a first portion of the optic and a second compressive force to a second portion of the optic, the second ocular force being different from the first ocular force;
- wherein the first and second portions of the optic change power when subjected to the compressive ocular force;
- and
- wherein the first portion of the optic changes power by an amount greater than the second portion.
28-36. (canceled)
Dependencies are inferred from the claim text.