INTRAOCULAR LENS THAT IMPROVES OVERALL VISION WHERE THERE IS A LOCAL LOSS OF RETINAL FUNCTION
First Claim
1. An intraocular lens configured to improve vision for a patient'"'"'s eye, the intraocular lens comprising:
- an optic comprising a first surface and a second surface opposite the first surface, the first surface and the second surface intersected by an optical axis, the optic being symmetric about the optical axis, wherein the first and the second surface of the optic are aspheric,wherein the optic is configured to improve image quality of an image produced by light incident on the patient'"'"'s eye at an oblique angle with respect to the optical axis and focused at a peripheral retinal location disposed at a distance from the fovea, andwherein the image quality is improved by reducing oblique astigmatism at the peripheral retinal location.
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Accused Products
Abstract
Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing symmetric or asymmetric optic with aspheric surface which redirects and/or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The intraocular lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the intraocular lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina. One or more surfaces of the intraocular lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.
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Citations
39 Claims
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1. An intraocular lens configured to improve vision for a patient'"'"'s eye, the intraocular lens comprising:
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an optic comprising a first surface and a second surface opposite the first surface, the first surface and the second surface intersected by an optical axis, the optic being symmetric about the optical axis, wherein the first and the second surface of the optic are aspheric, wherein the optic is configured to improve image quality of an image produced by light incident on the patient'"'"'s eye at an oblique angle with respect to the optical axis and focused at a peripheral retinal location disposed at a distance from the fovea, and wherein the image quality is improved by reducing oblique astigmatism at the peripheral retinal location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An intraocular lens configured to improve vision in a patient'"'"'s eye where there is a loss of retinal function, the intraocular lens comprising:
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a redirection element configured to redirect incident light along a deflected optical axis which intersects a retina of a user at a preferred retinal locus, the redirection element comprising a surface with a slope profile that is tailored such that, in use, the intraocular lens; redirects incident light along the deflected optical axis; focuses the incident light at the preferred retinal locus; and reduces optical wavefront errors, wherein the slope profile is tailored to redirect and focus the incoming rays on the preferred retinal locus. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of selecting an intraocular lens (IOL) configured to be implanted in a patient'"'"'s eye, the method comprising:
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obtaining at least one characteristic of the patient'"'"'s eye using a diagnostic instrument; and selecting an IOL having an optical power that reduces optical errors in an image produced at a peripheral retinal location of the patient'"'"'s eye disposed at a distance from the fovea, wherein the IOL is configured to produce an image by focusing light incident on the patient'"'"'s eye at an oblique angle with respect to an optical axis intersecting the patient'"'"'s eye at the peripheral retinal location, wherein the optical power of the IOL is based on the obtained characteristic, wherein a first surface of the IOL is aspheric, and wherein the IOL is symmetric about the optical axis. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification