Intraocular refractive correction lens

• US 6,106,553 A
• Filed: 10/24/1996
• Issued: 08/22/2000
• Est. Priority Date: 10/06/1994
• Status: Expired due to Term

• Current Assignee: Staar Surgical Company Incorporated
• Original Assignee: Staar Surgical Company Incorporated
• Inventors: Feingold, Vladimir
• Primary Examiner(s): Willse, David H.
• Application Number:
  US08/736,433
• Time in Patent Office: 1,398 Days
• Field of Search: 623/6
• US Class Current: 623/6.36
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 2/1601 Lens body having features to facilitate aqueous fluid flow across the intraocular lens, e.g. for pressure equalization or nutrient delivery
• 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 2002/1699 Additional features not otherwise provided for
• CPC Class Codes: G02C 7/04 Contact lenses for the eyes disinfection or sterilisation of contact lenses A61L12/00
• CPC Class Codes: G02C 7/049 Contact lenses having special fitting or structural features achieved by special materials or material structures

Abstract

An artificial intraocular refractive correction lens is implanted into an eye that has a natural crystalline lens by steps of providing an artificial intraocular refractive correction lens and inserting the artificial intraocular refractive correction lens into a posterior chamber of the eye to a position anterior to and in a vicinity of the natural crystalline lens to provide a spacing between the artificial intraocular refractive correction lens and the natural crystalline lens. The implanted intraocular refractive correction lens has a shape that is predetermined with respect to a shape of the natural crystalline lens so as to form the spacing.

Claims

1. An intraocular refractive correction lens for implanting in a posterior chamber of an eye in a vicinity of a natural crystalline lens and pupil of the eye, comprising:

a shape predetermined with respect to a shape of the natural crystalline lens to form a spacing between a posterior surface of said intraocular refractive correction lens and an anterior surface of the natural crystalline lens at a location between the natural crystalline lens and the pupil of the eye, said intraocular refractive correction lens being configured so as to not contact with the natural crystalline lens at any point when implanted in the eye.

2. The intraocular refractive correction lens of claim 1, wherein said intraocular refractive lens is configured to provide an interphase zone formed in said spacing.

3. The intraocular refractive correction lens of claim 2, wherein said interphase zone is 50 μ

m to 150 μ

m thick.

4. The intraocular refractive correction lens of claim 1, comprising an optic portion and base portion.

5. The intraocular refractive correction lens of claim 4, comprising an optic portion having an essentially planar anterior surface.

6. The intraocular refractive correction lens of claim 4, comprising a vaulted optic portion with convex anterior surface and concave posterior surface that forms said spacing.

7. The intraocular refractive correction lens of claim 4, comprising a transition portion that defines an elliptically transcribed surface transition from a surface of said optic portion to a surface of said base portion.

8. The intraocular refractive correction lens of claim 1, comprising a posterior surface in a concave shape in an arc having a radius of curvature less than a radius of curvature of an arc of the anterior surface of the natural crystalline lens that forms said spacing.

9. The intraocular refractive correction lens of claim 1, comprising an acrylic collagen polymer.

10. The intraocular refractive correction lens of claim 1, comprising a silicone material.

11. The intraocular refractive correction lens of claim 1, wherein said intraocular refractive corrective lens does not contact with an iris of the eye at any point.

12. An intraocular refractive correction lens for implanting in the vicinity of a natural crystalline lens and pupil of an eye, comprising:

a shape predetermined with respect to a shape of the natural crystalline lens to form a spacing between a posterior surface of said intraocular refractive correction lens and an anterior surface of the natural crystalline lens at a location between the natural crystalline lens and pupil when said intraocular refractive correction lens is implanted in the eye, said intraocular refractive correction lens not contacting the natural crystalline lens at any point when implanted in the eye.

13. The intraocular refractive correction lens of claim 12, comprising an optic portion and base portion.

14. The intraocular refractive correction lens of claim 13, comprising an optic portion having an essentially planar anterior surface.

15. The intraocular refractive correction lens of claim 14, comprising a transition portion that defines an elliptically transcribed surface transition from a surface of said optic portion to a surface of said base portion.

16. The intraocular refractive correction lens of claim 13, comprising a vaulted optic portion with convex anterior surface and concave posterior surface that forms said spacing.

17. The intraocular refractive correction lens of claim 12, comprising a posterior surface in a concave shape in an arc having a radius of curvature less than a radius of curvature of an arc of the anterior surface of the natural crystalline lens of an eye.

18. The intraocular refractive correction lens of claim 12, comprising an acrylic collagen polymer.

19. The intraocular refractive correction lens of claim 12, comprising a silicone material.

20. The intraocular refractive correction lens of claim 12, compressed into a diameter of less than a length of an incision in the eye for insertion through the incision into the eye.

21. The intraocular refractive correction lens of claim 12, wherein said intraocular refractive corrective lens is configured so as to not contact with an iris of the eye at any point.

22. An intraocular refractive correction lens for implanting in a posterior chamber of an eye in a vicinity of a natural crystalline lens and pupil of the eye, comprising:

a shape predetermined with respect to a shape of the natural crystalline lens to form a spacing between a posterior surface of said intraocular refractive correction lens and an anterior surface of the natural crystalline lens at a location between said intraocular refractive correction lens and the pupil, said intraocular refractive correction lens being configured so as to not contact an iris of the eye at any point when implanted in the eye.

23. The intraocular refractive correction lens of claim 22, wherein said intraocular refractive lens is configured to provide an interphase zone formed in said spacing.

24. The intraocular refractive correction lens of claim 23, wherein said interphase zone is 50 μ

m to 150 μ

m thick.

25. The intraocular refractive correction lens of claim 22, comprising an optic portion and base portion.

26. The intraocular refractive correction lens of claim 25, comprising an optic portion having an essentially planar anterior surface.

27. The intraocular refractive correction lens of claim 25, comprising a vaulted optic portion with convex anterior surface and concave posterior surface that forms said spacing.

28. The intraocular refractive correction lens of claim 25, comprising a transition portion that defines an elliptically transcribed surface transition from a surface of said optic portion to a surface of said base portion.

29. The intraocular refractive correction lens of claim 22, comprising a posterior surface in a concave shape in a arc having an radius of curvature less than a radius of curvature of an arc of the anterior surface of the natural crystalline lens that forms said spacing.

30. The intraocular refractive correction lens of claim 22, comprising an acrylic collagen polymer.

31. The intraocular refractive correction lens of claim 22, comprising a silicone material.

32. An intraocular refractive correction lens for implanting in the vicinity of a natural crystalline lens and pupil of an eye, comprising:

a shape predetermined with respect to a shape of the natural crystalline lens to form a spacing between a posterior surface of said intraocular refractive correction lens and an anterior surface of the natural crystalline lens at a location between the natural crystalline lens and pupil when said intraocular refractive correction lens is implanted in the eye, said intraocular refractive correction lens not contacting an iris of the eye at any point when implanted in the eye.

33. The intraocular refractive correction lens of claim 32, comprising an optic portion and base portion.

34. The intraocular refractive correction lens of claim 33, comprising an optic portion having an essentially planar anterior surface.

35. The intraocular refractive correction lens of claim 34, comprising a transition portion that defines an elliptically transcribed surface transition from a surface of said optic portion to a surface of said base portion.

36. The intraocular refractive correction lens of claim 33, comprising a vaulted optic portion with convex anterior surface and concave posterior surface that forms said spacing.

37. The intraocular refractive correction lens of claim 32, comprising a posterior surface in a concave shape in an arc having a radius of curvature less than a radius of curvature of an arc of the anterior surface of the natural crystalline lens of an eye.

38. The intraocular refractive correction lens of claim 32, comprising an acrylic collagen polymer.

39. The intraocular refractive correction lens of claim 32, comprising a silicone material.

40. The intraocular refractive correction lens of claim 32, compressed into a diameter of less than a length of an incision in the eye for insertion through the incision into the eye.

41. An intraocular refractive correction lens for implanting in a posterior chamber of an eye in a vicinity of a natural crystalline lens and a pupil of the eye, comprising:

an optic portion; and

a base portion;

wherein a shape of said intraocular refractive correction lens is predetermined with respect to a shape of the natural crystalline lens such that said intraocular refractive correction lens does not contact the natural crystalline lens at any point when implanted in the eye.

42. The intraocular refractive correction lens of claim 41 wherein said shape of said intraocular refractive correction lens is predetermined such that said intraocular refractive correction lens does not contact an iris of the eye at any point.

43. The intraocular refractive correction lens of claim 41 wherein said optic portion comprises a vaulted optic portion formed by a difference in radii of curvature of posterior surfaces of said optic portion and said base portion.

44. The intraocular refractive correction lens of claim 41 wherein a radius of curvature of said intraocular refractive correction lens is less than a radius of curvature of the natural crystalline lens.

45. The intraocular refractive correction lens of claim 41 wherein the optic portion is substantially circular and the base portion is substantially oval;

the base portion having a major diameter of about 10.5 mm, a minor diameter of about 6 mm, a radius of about 0.1 mm and a thickness of about 0.05 mm.