Accommodating intraocular lens and method of manufacture thereof

Patent metadata

Field	Value
Publication number	US-9271830-B2
Application number	US-65894710-A
Country	US
Kind code	B2
Filing date	Feb 16, 2010
Priority date	Dec 5, 2002
Publication date	Mar 1, 2016
Grant date	Mar 1, 2016

Abstract

An accommodating IOL comprises an optic adapted to focus light toward a retina of an eye, and a movement assembly coupled to the eye to provide effective accommodating movement, preferably axial movement, of the optic. At least a portion of the movement assembly is made from a material that is less stiff and/or more resilient than the material used to make the optic. Optionally, an outer ring or support portion made at least partially from either a relatively stiff material such as the material used in the optic or a relatively resilient material such as the material used in the movement assembly is also provided.

First claim

What is claimed is:

1. An intraocular lens comprising:
an optic adapted to focus light toward a retina of an eye, at least a portion of the optic being made of a first material having a first stiffness; and
a movement assembly coupled to the optic and adapted to cooperate with the eye to provide accommodating movement of the optic, wherein the movement assembly is comprised of a capsular bag support ring with a plurality of members coupled to the capsular bag support ring, the members having substantial voids therebetween, wherein each member has a hinge portion that is located between the ring and the optic and that has a reduced thickness relative to a portion of the member located adjacent the hinge portion and between the hinge portion and the ring, and relative to a portion of the member located adjacent the hinge portion and between the hinge portion and the optic, wherein each member includes a proximal end region coupled to the optic and a distal end region coupled to the ring, wherein at least a portion of the movement assembly is made of a second material having a second stiffness; and
wherein the first stiffness is greater than the second stiffness,
wherein the ring is made at least partially of a third material, where the third material has a third stiffness that is greater than the first stiffness.

2. The intraocular lens of claim 1 which is deformable to allow passage of the intraocular lens through a small incision into the eye.

3. The intraocular lens of claim 1 which provides an increased amount of accommodating movement of the optic relative to a substantially identical intraocular lens including a movement assembly made entirely of a stiffer material than the second material.

4. The intraocular lens of claim 3 , wherein the accommodating movement is axial movement.

5. The intraocular lens of claim 1 , wherein the movement assembly is configured to provide at least 0.5 mm of axial movement.

6. The intraocular lens of claim 1 , wherein the first material and the second material include a first polymeric material and a second polymeric material, respectively.

7. The intraocular lens of claim 6 , wherein the first and second polymeric materials are derived from monomers which are mutually compatible.

8. The intraocular lens of claim 7 , wherein the first polymeric material is chemically bonded to the second polymeric material.

9. The intraocular lens of claim 6 , wherein the first and second polymeric materials are both acrylic polymeric materials or both silicon-containing polymeric materials.

10. The intraocular lens of claim 9 , wherein:
both the first and second materials comprise silicon-containing polymeric materials; and
the first material includes more of a reinforcing component than the second material.

11. The intraocular lens of claim 6 , wherein the first and second polymeric materials are both acrylic polymeric materials.

12. The intraocular lens of claim 6 , wherein the second material has an increased water content relative to the first material.

13. The intraocular lens of claim 12 , wherein the first material comprises a cross-linked acrylic polymer, and the second material comprises an acrylic hydrogel-forming polymer.

14. The intraocular lens of claim 13 , wherein the second material comprises a polymer selected from the group consisting of poly hydroxyalkyl methacrylates, methyl methacrylate/N-vinyl pyrrolidone-containing copolymers and mixtures thereof.

15. The intraocular lens of claim 1 , wherein the second material has an increased water content relative to the first material.

16. The intraocular lens of claim 15 , wherein the second material comprises a polymer selected from the group consisting of poly hydroxyalkyl methacrylates, methyl methacrylate/N-vinyl pyrrolidone-containing copolymers and mixtures thereof.

17. The intraocular lens of claim 1 , wherein the ring is made at least partially of the third material which has an increased stiffness relative to the second material.

18. The intraocular lens of claim 1 , wherein the hinge portion of each member is made of the second material.

19. The intraocular lens of claim 1 , wherein the first, second and third materials comprise first, second and third polymeric materials, respectively.

20. The intraocular lens of claim 19 , wherein the third material comprises an acrylic polymeric material.

21. The intraocular lens of claim 20 , wherein at least one of the first and second materials comprises an acrylic polymeric material.

22. The intraocular lens of claim 1 , wherein at least one of the first and second materials is a silicon-containing polymeric material.

23. The intraocular lens of claim 1 , wherein the first material comprises a cross-linked acrylic polymeric material and wherein the second material comprises a silicon containing polymeric material.

24. The intraocular lens of claim 1 , wherein each member extends radially outward from the optic.

25. The intraocular lens of claim 1 , wherein the hinge portion of each member has a reduced thickness relative to the remainder of the respective member.

26. The intraocular lens of claim 1 , wherein each member has a proximal end coupled to the optic, and a distal end coupled to the ring, the hinge portion being located between the proximal end and the distal end.

27. The intraocular lens of claim 1 , wherein the members are oriented in a tripod configuration.

Assignees

• Paul Marlene L
• Lowery Michael D
• Brady Daniel
• Gwon Arlene
• Abbott Medical Optics Inc

Inventors

• Paul Marlene L
• Lowery Michael D
• Brady Daniel
• Gwon Arlene

Classifications

• A61F2230/0013

  Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped · CPC title

• A61F2230/001

  Figure-8-shaped, e.g. hourglass-shaped · CPC title

• A61F2/1629 Primary

  for changing longitudinal position, i.e. along the visual axis when implanted · CPC title

• A61F2/1624

  having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside · CPC title

• A61F2/1613 Primary

  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 title