DUAL-OPTIC INTRAOCULAR LENS THAT IMPROVES OVERALL VISION WHERE THERE IS A LOCAL LOSS OF RETINAL FUNCTION

• US 20150265399A1
• Filed: 03/10/2015
• Published: 09/24/2015
• Est. Priority Date: 03/10/2014
• Status: Active Grant

• Current Assignee: Amo Groningen B.V (Johnson & Johnson)
• Original Assignee: Amo Groningen B.V (Johnson & Johnson)
• Inventors: Rosen, Robert, Weeber, Hendrik A, Canovas Vidal, Carmen, Van Der Mooren, Marrie, Sellitri, Dora, Piers, Patricia Ann
• Granted Patent: US 9,579,192 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/028 for testing visual acuity; for determination of refraction, e.g. phoropters
• CPC Class Codes: A61B 3/1005 for measuring distances inside the eye, e.g. thickness of the cornea A61B3/11 takes precedence
• CPC Class Codes: A61B 3/103 for determining refraction, e.g. refractometers, skiascopes
• CPC Class Codes: A61B 3/107 for determining the shape or measuring the curvature of the cornea
• CPC Class Codes: A61B 3/14 Arrangements specially adapted for eye photography apparatus or arrangements for taking photographs per se G03B
• CPC Class Codes: A61F 2/1602 Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes
• CPC Class Codes: A61F 2/1605 Anterior chamber lenses for use in addition to the natural lenses of the eyes, e.g. iris fixated, iris floating
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2/1618 Multifocal lenses
• CPC Class Codes: A61F 2/1637 Correcting aberrations caused by inhomogeneities; correcting intrinsic aberrations, e.g. of the cornea, of the surface of the natural lens, aspheric, cylindrical, toric lenses
• CPC Class Codes: A61F 2/164 Aspheric lenses
• CPC Class Codes: A61F 2/1645 Toric lenses
• CPC Class Codes: A61F 2/1648 Multipart lenses
• CPC Class Codes: A61F 2/1654 Diffractive lenses
• CPC Class Codes: A61F 2/1656 Fresnel lenses, prisms or plates
• CPC Class Codes: A61F 2/1659 having variable absorption coefficient for electromagnetic radiation, e.g. photochromic lenses
• CPC Class Codes: A61F 2002/1681 having supporting structure for lens, e.g. haptics
• CPC Class Codes: A61F 2240/002 Designing or making customized prostheses

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 a dual optic intraocular lens 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.

Claims

1. An intraocular lens configured to improve vision for a patient'"'"'s eye, the intraocular lens (IOL) comprising:

a first viewing element comprising a first surface and a second surface opposite the first surface;

a second viewing element comprising a third surface and a fourth surface opposite the third surface; and

at least one haptic connected to one of the first or second viewing elements,

wherein the patient'"'"'s eye is intersected by an optical axis, and the IOL 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.

2. The intraocular lens of claim 1, wherein the image quality is improved by reducing coma at the peripheral retinal location.

3. The intraocular lens of claim 1, wherein the oblique angle is between about 1 degree and about 25 degrees.

4. The intraocular lens of claim 1, wherein at least one of the surfaces of the first or second viewing element is a toric surface, an aspheric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface.

5. The intraocular lens of claim 1, wherein the image has a modulation transfer function (MTF) of at least 0.3 for a spatial frequency of 30 cycles/mm for both the tangential and the sagittal foci at the peripheral retinal location.

6. The intraocular lens of claim 1, wherein the image has a modulation transfer function (MTF) of at least 0.5 for a spatial frequency of 100 cycles/mm for both the tangential and the sagittal foci at the fovea.

7. The intraocular lens of claim 1, wherein the first and second viewing elements are spaced apart from each other by a distance between about 0.5 mm and about 3.0 MM.

8. The intraocular lens of claim 1, wherein the first viewing element provides optical power and the second viewing element provides correction for optical errors in the image.

9. The intraocular lens of claim 1, wherein one of the first viewing element or the second viewing element has an optical power between −

5 Diopters and +5 Diopters.

10. The intraocular lens of claim 1, wherein the first and second viewing elements are configured to be implanted in a capsular bag of a patient.

11. The intraocular lens of claim 1, wherein the first viewing element is configured to be implanted in a capsular bag of a patient'"'"'s eye and the second viewing elements is configured to be implanted in the sulcus of the patient'"'"'s eye.

12. The intraocular lens of claim 1, wherein the first or the second viewing element includes diffractive features.

13. The intraocular lens of claim 1, wherein the first or the second viewing element includes prismatic features.

14. A method of selecting an intraocular lens (IOL) configured to be implanted in a patient'"'"'s eye, the method comprising:

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.

15. The method of claim 14, wherein the obtained characteristic includes axial length along the optical axis of the patient'"'"'s eye and corneal power.

16. The method of claim 15, wherein the optical power is obtained from an estimate of an axial length along an axis which deviates from the optical axis and intersects the retina at the peripheral retinal location, the estimate based on the axial length along the optical axis of the patient'"'"'s eye and corneal power.

17. The method of claim 14, wherein the obtained characteristic is selected from the group consisting of axial length along the optical axis of the patient'"'"'s eye, corneal power based at least in part on measurements of topography of the cornea, an axial length along an axis which deviates from the optical axis and intersects the retina at the peripheral retinal location, a shape of the retina, and a measurement of optical errors at the peripheral retinal location.

18. The method of claim 14, wherein the IOL comprises a first viewing element and a second viewing element.

19. The method of claim 18, wherein at least one of the surfaces of the first viewing element or the second viewing element is a toric surface, an aspheric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface.

20. The method of claim 18, wherein at least one of the surfaces of the first viewing element or the second viewing element includes a redirecting element.

21. The method of claim 20, wherein the redirecting element comprises a diffractive feature.

22. The method of claim 20, wherein the redirecting element comprises a prismatic feature.

23. The method of claim 14, wherein the image has reduced coma.

24. The method of claim 14, wherein the image has reduced astigmatism.

25. The method of claim 14, wherein the oblique angle is between about 1 degree and about 25 degrees.

26. The method of claim 14, wherein the IOL is configured such that the image has a modulation transfer function (MTF) of at least 0.3 for a spatial frequency of 30 cycles/mm for both tangential and sagittal foci.