Accommodating intraocular lens and method of manufacture thereof

Patent metadata

Field	Value
Publication number	US-10206773-B2
Application number	US-201615056110-A
Country	US
Kind code	B2
Filing date	Feb 29, 2016
Priority date	Dec 5, 2002
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

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; and
a movement assembly coupled to the optic and adapted to cooperate with the eye to provide effective accommodating movement of the optic in response to action of the eye, at least a portion of the movement assembly being made of a second material that is more resilient than the first material,
wherein the movement assembly comprises a pair of opposing fixation members and a pair of opposing enlarged support portions at distal portions of the pair of opposing fixation members, the pair of opposing enlarged support portions adapted to contact a capsular bag of the eye,
wherein each fixation member of the pair of opposing fixation members decreases in width from a proximal end coupled to the optic to an intermediate portion, and increases in width from the intermediate portion to the distal portion, and
wherein, for each fixation member, a hinge having a thickness less than the proximal portion and the distal portion is provided at a narrowest section of the intermediate portion.

2. 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.

3. The intraocular lens of claim 2 , wherein the first and second polymeric materials are derived from monomers which are mutually compatible.

4. The intraocular lens of claim 3 , wherein the first polymeric material is chemically bonded to the second polymeric material.

5. The intraocular lens of claim 2 , wherein the first and second polymeric materials are both acrylic polymeric materials.

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

7. The intraocular lens of claim 6 , wherein the first material comprises a cross-linked acrylic polymer, and the second material comprises an acrylic hydrogel-forming polymer.

8. The intraocular lens of claim 7 , 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.

9. The intraocular lens of claim 1 , wherein the movement assembly at least partially circumscribes the optic.

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

11. The intraocular lens of claim 1 , wherein each fixation member of the pair of opposing fixation members is hour-glass shaped.

12. The intraocular lens of claim 11 , wherein each enlarged support portion of the pair of enlarged support portions is crescent-shaped.

13. The intraocular lens of claim 12 , wherein each enlarged support portion of the pair of enlarged support portions tapers from a proximal end having a first width at the distal portion of the fixation member to a distal end having a second width less than the first width.

14. The intraocular lens of claim 1 , wherein the first material comprises a first silicon-containing polymeric material and the second material comprises a second silicon-containing polymeric material that is less stiff than the first silicon-containing polymeric material.

Assignees

• Abbott Medical Optics Inc
• Johnson & Johnson Surgical Vision Inc

Inventors

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

Classifications

• A61F2230/0013

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

• A61F2002/1682

  having mechanical force transfer mechanism to the lens, e.g. for accommodating lenses · CPC title

• A61F2230/001

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

• A61F2002/16905

  Having means on lens to reduce overall dimension of lens for insertion into small incision · CPC title

• A61F2002/1689

  having plate-haptics · CPC title