Accommodating intraocular lens system with aberration-enhanced performance
First Claim
1. An accommodating intraocular lens implantable in an eye, the lens comprising:
- an anterior portion having an anterior biasing element and an anterior optic having refractive power; and
a posterior portion having a posterior biasing element and a posterior optic having refractive power;
the anterior optic and the posterior optic being relatively moveable generally along an optical axis of the eye in response to action of the ciliary muscle to change the separation between the optics and the refractive power of the lens, the anterior optic and the posterior optic each having an optical axis;
the lens having an aberration-inducing force characteristic to allow aberration-inducing relative movement of the optical axes of the optics when the lens is in the eye to cause the optical axes to become non-colinear, thereby adding optical aberration to the lens which increases depth of focus of the lens.
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Accused Products
Abstract
An accommodating intraocular lens implantable in an eye. The lens comprises an anterior portion having an anterior biasing element and an anterior optic having refractive power. The lens further comprises a posterior portion having a posterior biasing element and a posterior optic having refractive power. The anterior optic and the posterior optic are relatively moveable in response to action of the ciliary muscle to change the separation between the optics and the refractive power of the lens. The lens has an aberration-inducing force characteristic of about 70 mg to about 115 mg to allow aberration-inducing relative movement of the optics when the lens is in the eye, thereby adding optical aberration to the lens which increases depth of focus of the lens. In one variation, the lens has an aberration-inducing force characteristic of 70 mg to 115 mg. Related methods are also disclosed.
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Citations
35 Claims
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1. An accommodating intraocular lens implantable in an eye, the lens comprising:
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an anterior portion having an anterior biasing element and an anterior optic having refractive power; and a posterior portion having a posterior biasing element and a posterior optic having refractive power; the anterior optic and the posterior optic being relatively moveable generally along an optical axis of the eye in response to action of the ciliary muscle to change the separation between the optics and the refractive power of the lens, the anterior optic and the posterior optic each having an optical axis; the lens having an aberration-inducing force characteristic to allow aberration-inducing relative movement of the optical axes of the optics when the lens is in the eye to cause the optical axes to become non-colinear, thereby adding optical aberration to the lens which increases depth of focus of the lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An accommodating intraocular lens implantable in an eye having an optical axis, the lens comprising:
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an anterior portion having an anterior biasing element and an anterior viewing element, the anterior viewing element comprising an optic having refractive power; a posterior portion having a posterior viewing element; the anterior biasing element attached to a periphery of the anterior viewing element at substantially diametrically opposed first and second attachment locations; the periphery of the anterior viewing element being unattached to the anterior biasing element between the first and second attachment locations; the size of the first and second attachment locations being sufficiently small such that an optical axis of the anterior optic tilts and/or decenters relative to the optical axis of the eye during movement of the anterior optic relative to the posterior viewing element generally along the optical axis of the eye under force applied by the ciliary body. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An accommodating intraocular lens system comprising:
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an anterior optic having a positive refractive power, said anterior optic having an anterior optical axis; a posterior optic having a negative refractive power, said posterior optic having a posterior optical axis; said optics mounted to move generally along an anterior-to-posterior direction relative to each other in response to ciliary muscle action, said optics having within their range of relative motion a first configuration in which said anterior optical axis is sufficiently misaligned relative to said posterior optical axis to introduce optical aberration in the lens that increases depth of focus relative to the depth of focus that would exist if said axes of said optics were aligned. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. An accommodating intraocular lens implantable in an eye, the lens comprising:
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an anterior portion having an anterior biasing element and an anterior optic having refractive power; and a posterior portion having a posterior biasing element and a posterior optic having refractive power; the anterior optic and the posterior optic being relatively moveable generally along an optical axis of the eye in response to action of the ciliary muscle to change the separation between the optics and the refractive power of the lens, the anterior optic and the posterior optic each having an optical axis; the lens having an aberration-inducing force characteristic to allow aberration-inducing relative movement of the optical axes of the optics when the lens is in the eye to create or increase axial offset and/or angular orientation of the optical axes relative to each other thereby adding optical aberration to the lens which increases depth of focus of the lens.
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Specification