Compound intraocular lens

• US 5,968,094 A
• Filed: 08/22/1997
• Issued: 10/19/1999
• Est. Priority Date: 09/18/1995
• Status: Expired due to Term

• Current Assignee: Emmetropia, Inc.
• Original Assignee: Emmetropia, Inc.
• Inventors: Roberts, James E., Werblin, Theodore P., Shalon, Tadmor
• Primary Examiner(s): Isabella, David J.
• Assistant Examiner(s): Nguyen, Dinh X.
• Application Number:
  US08/916,426
• Time in Patent Office: 788 Days
• Field of Search: 623/6, 623/4
• US Class Current: 623/6.34
• 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 2/1613 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 2/1648 Multipart lenses
• CPC Class Codes: A61F 2/1662 Instruments for inserting intraocular lenses into the eye

Abstract

The compound intraocular lens ("CIOL") of the present invention includes a preexisting lens within the eye (which can be either of the crystalline lens of the eye, a conventional IOL or a base lens of a multi-component IOL) used as a platform for support (i.e., the "support lens") a cap situated on the support lens, and a sandwich lens which is sandwiched between the support lens and the cap lens. Utilizing a pre-existing implanted IOL or the crystalline lens of the eye, a surgeon can modify a patient'"'"'s vision characteristics merely by utilizing the cap and sandwich lenses in conjunction with the pre-existing implanted IOL or the crystalline lens of the eye. The CIOL has several enhanced features: (1) it can be configured as a monofocal, multi-focal, tri-focal or bifocal optical system; (2) it can be configured to correct astigmatism, if desired; (3) it can be comprised of ultraviolet light-absorbing material; (4) it can be comprised of tinted materials if desired; and (5) the components may be comprised of chemically-treated materials to decrease their cellular reactivity.

Claims

1. A compound intraocular lens system for an eye comprising:

an existing lens placed in the eye;

a cap lens situated on said existing lens and having a plurality of attachment elements on an anterior surface of said caps lens, wherein the cap lens is coated with a chemical material to decrease the cellular reactivity of such cap lens; and

an attachable/detachable sandwich lens which clips into said attachment elements of said cap lens.

2. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of PMMA.

3. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of acrylic.

4. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of silicone.

5. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of glass.

6. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of any combination of PMMA, acrylic, silicone or glass materials.

7. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of a material which is capable of absorbing light in the ultraviolet portion of the light spectrum.

8. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is coated with a chemical material to decrease the cellular reactivity of such sandwich lens.

9. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is surface-treated by passivation to decrease the cellular reactivity of such sandwich lens.

10. The compound intraocular lens system as claimed in claim 8 wherein the chemical material is heparin.

11. The compound intraocular lens system as claimed in claim 1 wherein the existing lens is a conventional posterior chamber intraocular lens which has permanently healed in the eye after a first surgical event and is used as a platform for the other two components.

12. The compound intraocular lens system as claimed in claim 1 wherein the existing lens is a base lens of a multicomponent intraocular lens which has permanently healed in the posterior chamber of the eye after a first surgical event and is used as a platform for the other two components.

13. The compound intraocular lens system as claimed in claim 1 wherein the compound intraocular lens system is situated in the anterior chamber of the eye.

14. The compound intraocular lens system as claimed in claim 1 wherein the compound intraocular lens system is configured to be attached to the iris of the eye.

15. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of PMMA.

16. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of acrylic.

17. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of silicone.

18. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of glass.

19. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of any combination of PMMA, acrylic, silicone or glass materials.

20. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of a material which is capable of absorbing light in the ultraviolet portion of the light spectrum.

21. The compound intraocular lens system as claimed in claim 12 wherein the base lens is coated with a chemical material to decrease the cellular reactivity of such base lens.

22. The compound intraocular lens system as claimed in claim 12 wherein the base lens is surface-treated by passivation to decrease the cellular reactivity of such base lens.

23. The compound intraocular lens system as claimed in claim 21 wherein said chemical material is heparin.

24. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of PMMA.

25. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of acrylic.

26. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of silicone.

27. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of glass.

28. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of any combination of PMMA, acrylic, silicone or glass materials.

29. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of a material which is capable of absorbing light in the ultraviolet portion of the light spectrum.

30. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is coated with a chemical material to decrease the cellular reactivity of such cap lens.

31. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is surface-treated by passivation to decrease the cellular reactivity of such cap lens.

32. The compound intraocular lens system as claimed in claim 30 wherein the chemical material is heparin.

33. The compound intraocular lens system as claimed in claim 12 wherein the base lens has a monofocal capacity with a spherical refractive power of + or -.

34. The compound intraocular lens system as claimed in claimed in claim 12 wherein the base lens has a multifocal capacity.

35. The compound intraocular lens system as claimed in claim 12 wherein the base lens is comprised of an astigmatic correction feature.

36. The compound intraocular lens system as claimed in claim 12 wherein the base lens has a bifocal capacity.

37. The compound intraocular lens system as claimed in claim 4 wherein the base lens has a trifocal capacity.

38. The compound intraocular lens system as claimed in claim 12 wherein the base lens has any combination of monofocal, bifocal, trifocal, multifocal or astigmatic corrective optical properties.

39. The compound intraocular lens system as claimed in claim 1 wherein the cap lens has a monofocal capacity with a spherical refractive power of + or -.

40. The compound intraocular lens system as claimed in claim 1 wherein the cap lens has a multifocal capacity.

41. The compound intraocular lens system as claimed in claim 1 wherein the cap lens is comprised of an astigmatic correction feature.

42. The compound intraocular lens system as claimed in claim 1 wherein the cap lens has a bifocal capacity.

43. The compound intraocular lens system as claimed in claim 1 wherein the cap lens has a trifocal capacity.

44. The compound intraocular lens system as claimed in claim 1 wherein the cap lens has any combination of monofocal, bifocal, trifocal, multifocal or astigmatic corrective optical properties.

45. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens has a monofocal capacity with a spherical refractive power of + or-.

46. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens has a multifocal capacity.

47. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens is comprised of an astigmatic correction feature.

48. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens has a bifocal capacity.

49. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens has a trifocal capacity.

50. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens has any combination of monofocal, bifocal, trifocal, multifocal or astigmatic corrective optical properties.

51. The compound intraocular lens system as claimed in claim 12 wherein the power of the base lens is 8.00 D to 14.00 D.

52. The compound intraocular lens system as claimed in claim 12 wherein the base lens has a diameter of 6.00 mm and an optical aperture of 5.5 mm.

53. The compound intraocular lens system as claimed in claim 1 wherein the sandwich lens has a diameter of 6.3 mm and an optical aperture of 5.5 mm.

54. The compound intraocular lens system as claimed in claim 1 wherein the cap lens has a diameter of 6.3 mm and an optical aperture of 5.5 mm.

55. The compound intraocular lens system as claimed in claim 1 wherein the system has a spherical power range of 14.5 OD.

56. The compound intraocular lens system as claimed in claim 1 wherein the system has a vision correction accuracy of +/-0.25 OD.

57. The compound intraocular lens system as claimed in claim 1 wherein the system has an adjustable cylindrical power of 4.0 OD.

58. The compound intraocular lens system as claimed in claim 1 wherein the system has an adjustable spherical power of 3.0 OD.

59. A compound intraocular lens system for an eye comprising:

an existing lens placed in the eye;

a cap lens situated on said existing lens and having a plurality of attachment elements on an anterior surface of said caps lens, and

an attachable/detachable sandwich lens which clips into said attachment elements of said cap lens, wherein said existing lens is a base lens of a multicomponent intraocular lens which has permanently healed in the posterior chamber of the eye after a first surgical event and is used as a platform for the cap lens and sandwich lens, and wherein said base lens is coated with a chemical material to decrease the cellular reactivity of such base lens.

60. A compound intraocular lens system for an eye comprising:

an existing lens placed in the eye;

cap lens situated on said existing lens and having a plurality of attachment elements on an anterior surface of said caps lens, and

an attachable/detachable sandwich lens which clips into said attachment elements of said cap lens, wherein the sandwich lens is coated with a chemical material to decrease the cellular reactivity of such sandwich lens.

61. A multi-component intraocular lens systems for an eye, comprising:

a base intraocular lens, for positioning in the eye, said base intraocular lens having a radius and a circumference and including a first plurality of flanges selectively interspersed around said circumference, and a first plurality of projections for holding said multi-component intraocular lens system in place in the eye;

a cap lens situated on said base lens, said cap lens having a radius and a circumference and including a second plurality of flanges, a first subset of said second plurality of flanges projecting upwards from said cap lens and a second subset of said second plurality of flanges projecting downwards from said cap lens, both of said first and second subsets of said second plurality of flanges being selectively interspersed around said circumference of said cap lens; and

a sandwich lens, fixed to an anterior surface of said cap lens, said sandwich lens having a radius and a circumference and including a third plurality of flanges projecting downwards from said sandwich lens and being oriented in such a manner as to interlockingly engage with said second plurality of flanges so as to securely hold said sandwich lens in the correct orientation for appropriate correction of vision of said eye.

62. A multi-component intraocular lens system for an eye, comprising:

a base intraocular lens, for positioning in the eye, said base intraocular lens having a radius and a circumference and including a first plurality of flanges selectively interspersed around said circumference, and a first plurality of projections for holding said multi-component intraocular lens system in place in the eye;

a sandwich lens situated on said base lens, said sandwich lens having a radius and a circumference and including a second plurality of flanges, a first subset of said second plurality of flanges projecting upwards from said sandwich lens and a second subset of said second plurality of flanges projecting downwards from said sandwich lens, both of said first and said second subsets of said second plurality of flanges being selectively interspersed around said circumference of said sandwich lens; and

a cap lens, situated on said sandwich lens, said cap lens having a radius and a circumference and including a third plurality of flanges projecting downwards from said cap lens and being oriented in such a manner as to interlockingly engage with said second plurality of flanges so as to securely hold said cap lens in the correct orientation for appropriate correction of vision of said eye.