Intraocular lens having a design for controlling its axial displacement after implantation

• US 6,533,814 B1
• Filed: 01/16/2001
• Issued: 03/18/2003
• Est. Priority Date: 05/05/1998
• Status: Expired due to Term

• Current Assignee: Amo Groningen B.V (Johnson & Johnson)
• Original Assignee: Pharmacia Groningen BV
• Inventors: Jansen, Peter
• Primary Examiner(s): Nguyen, Dinh X.
• Application Number:
  US09/674,133
• Time in Patent Office: 791 Days
• Field of Search: 623/6.11, 623/6.38, 623/6.4, 623/6.43
• US Class Current: 623/6.43
• 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 2002/1683 having filiform haptics

Abstract

Intraocular lens comprising a central optical body and haptics attached to or formed integrally with said optical body wherein the haptics are attached to the optical body via connecting members separating the haptic plane from the optical plane by a distance b which is at least half the thickness of the optical body.

Claims

1. Intraocular lens comprising a central optical body and two haptics attached to or formed integrally with said optical body, wherein the haptics are adapted to contact the capsular bag of an eye and center the optical body behind the iris of the eye to avoid contact of the lens with the iris, wherein the haptics are respectively attached to the optical body via two connecting members separating the haptic plane from the optical plane by a distance b which is larger than half the thickness of the optical body, and wherein each connecting member is substantially perpendicular to the optic plane of the lens.

2. Intraocular lens according to claim 1, wherein the lens is a one-piece lens manufactured from PMMA.

3. Intraocular lens according to claim 1, wherein the lens is a one-piece lens prepared from a foldable material.

4. Intraocular lens according to claim 1, wherein the lens is a three-piece foldable lens.

5. Intraocular lens according to claim 1, wherein the lens is adapted to exhibit no displacement of the optical body along the optical axis as a result of compression forces and reaction force from a vitreous body acting on the haptics in the capsular bag after implantation.

6. Intraocular lens according to claim 1, wherein the stiffness ratio of the haptic to the connecting members is about 1:

12.

7. Intraocular lens according to claim 1 wherein the lens includes a haptic plane and an optic plane, and the haptic plane and the optic plane of the lens are parallel.

8. Intraocular lens according to claim 1 wherein the haptics comprise two identical lateral parts.

9. Intraocular lens according to claim 2, wherein the lens is adapted to exhibit no displacement of the optical body along the optical axis as a result of compression forces and reaction force from a vitreous body acting on the haptics in the capsular bag after implantation.

10. Intraocular lens according to claim 3, wherein the lens is adapted to exhibit no displacement of the optical body along the optical axis as a result of compression forces and reaction force from a vitreous body acting on the haptics in the capsular bag after implantation.

11. Intraocular lens according to claim 4, wherein the lens is adapted to exhibit no displacement of the optical body along the optical axis as a result of compression forces and reaction force from a vitreous body acting on the haptics in the capsular bag after implantation.

12. Intraocular lens according to claim 1, wherein the haptics are attached to the edge of the optical body via the connecting members.

13. Intraocular lens according to claim 1, wherein the connecting members are diametrically opposed to one another.

14. Intraocular lens comprising a central optical body and haptics attached to or formed integrally with said optical body, wherein the haptics are adapted to contact the capsular bag of an eye and center the optical body behind the iris of the eye to avoid contact of the lens with the iris, wherein the haptics are attached to the optical body via connecting members separating the haptic plane from the optical plane by a distance b which is larger than half the thickness of the optical body, and wherein each connecting member is substantially perpendicular to the optical plane of the lens, whereby a controlled or predictable displacement of the intraocular lens is achieved in the eye.

15. Intraocular lens according to claim 14, wherein the stiffness ratio of the haptic to the connecting members is about 1:

12.

16. Intraocular lens according to claim 14, wherein the haptic plane is perpendicular to the optical axis of the lens.

17. Intraocular lens according to claim 14, wherein the lens is a one-piece lens manufactured from PMMA.

18. Intraocular lens according to claim 14, wherein the lens is a one-piece lens prepared from a foldable material.

19. Intraocular lens according to claim 14, wherein the lens is a three-piece foldable lens.

20. Intraocular lens according to claim 14, wherein the lens is adapted to exhibit no displacement of the optical body along the optical axis as a result of compression forces and reaction force from a vitreous body acting on the haptics in the capsular bag after implantation.

21. Intraocular lens according to claim 14, wherein the haptics comprise two identical lateral parts.

22. Intraocular lens according to claim 14, wherein the haptics are attached to the edge of the optical body via the connecting members.