Processing

Please wait...

Settings

Settings

1. WO2007005893 - FOLDABLE INTRAOCULAR LENS WITH ADAPTABLE HAPTICS

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

Claims

1. An intraocular lens comprising:
a lens body;
a haptic base, comprising a proximal end and a distal end, wherein the proximal end of the haptic base is connected to the lens body by a first vertically flexible junction region, wherein the first junction region flexes vertically relative to the lens body; and
a haptic tail, wherein the haptic tail comprises a haptic footplate connected to the haptic tail by a horizontally flexible member, wherein the horizontally flexible member flexes horizontally relative to the lens body, and wherein the distal end of the haptic base is connected to the haptic tail by a second vertically flexible junction region, wherein the second junction region flexes vertically relative to the lens body.

2. The intraocular lens of claim 1 , wherein the lens body, the first junction region, the haptic base, the second junction region and the haptic tail form an S-curve.

3. The intraocular lens of claim 1 , wherein the lens body and the haptic base form meet to form an acute angle at the first junction region and the haptic base and the haptic tail meet to form an acute angle at the second junction region.

4. The intraocular lens of claim 3, wherein the angle at the first junction region and the angle at the second junction region decrease upon implantation of the intraocular lens in an eye of a recipient.

5. The intraocular lens of claim 4, wherein the angle at the first junction region and the angle at the second junction region increase after the intraocular lens adapts to the eye of a recipient.

6. The intraocular lens of claim 5, wherein the angle at the first junction region and the angle at the second junction regions stabilize from 1 to 6 hours after implantation.

7. The intraocular lens of claim 1, wherein upon implantation of the intraocular lens in an eye of a recipient, the haptic footplate moves horizontally while the first and second vertically flexible junction regions move vertically, thereby minimizing vertical vault of the lens body.

8. The intraocular lens of claim 1, wherein the haptic footplate comprises a width that is greater than that of the flexible member.

9. The intraocular lens of claim 1, wherein the lens body further comprises an optic.

10. The lens of claim 9, wherein the optic is a refractive optic.

11. The lens of claim 9, wherein the optic is a diffractive optic.

12. The lens of claim 11, wherein the diffractive optic is a multi-order diffractive structure having a plurality of zones which define zone boundaries at which light incident on the structure experiences an optical phase shift, and diffracts light of each of the wavelengths in a different diffractive order, m, such that m > 1, to said focus, thereby providing a plural order diffractive singlet.

13. The lens of claim 9, wherein the optic comprises a refractive component and a diffractive component.

14. An intraocular lens comprising:
a lens body;
a haptic base, comprising a proximal end and a distal end, wherein the proximal end of the haptic base is connected to the lens body by a first vertically flexible junction region, forming a first angle; and
a haptic tail, wherein the haptic tail comprises a haptic footplate connected to the haptic tail by a horizontally flexible member, wherein the distal end of the haptic base is connected to the haptic tail by a second vertically flexible junction region, forming a second angle,
wherein the first angle and the second angle decrease in size upon implantation of the intraocular lens in an eye of a recipient, thereby minimizing or eliminating vertical vaulting of the lens body.

15. An intraocular lens haptic, comprising:
a junction region, having a proximal end and a distal end;
a haptic base flexibly connected to the proximal end of the junction region; and
a haptic footplate connected to the distal end of the junction region by a horizontally flexible member, wherein the junction region is wider than either the haptic footplate or the haptic base.

16. A intraocular lens, comprising:
a haptic;
a lens body in a first plane, wherein the lens body comprises an anterior surface and a posterior surface; and
an optic in a second plane, wherein the optic comprises an anterior surface and a posterior surface, wherein the first plane is different from the second plane and wherein either the anterior surface of the lens body or the anterior surface of the optic is relatively closer to the iris, but not both.

17. An intraocular corrective lens comprising:
an optic disposed within a lens body, wherein the lens body is substantially planar; and a first haptic base extending from the lens body to a first haptic tail, wherein the lens body, the first haptic base and the first haptic tail form a first S-curve having a first region of inflection;
a second haptic base extending from the lens body to a second haptic tail, wherein the lens body, the second haptic base and the second haptic tail form a second S-curve having a second region of inflection; and
a first haptic footplate extending from the first haptic tail in a plane substantially parallel to the lens body and a second haptic footplate extending from the second haptic tail in a plane substantially parallel to the lens body,
wherein a distance between the first and second regions of inflection decrease upon implantation of the intraocular corrective lens in a recipient's eye.

18. An intraocular corrective lens comprising:
an optic with a diameter disposed within a lens body, wherein the lens body has a width approximately equal to the diameter of the optic;

at least one haptic base extending from the lens body at an acute angle comprising a proximal end and a distal end, wherein the proximal end of the haptic base has a width approximately equal to the width of the lens body; and
a haptic tail comprising at least two haptic footplates extending from the haptic base at an acute angle, wherein the footplates extend at angles less than 65° degrees out from the haptic base and wherein the footplates extend in a plane substantially parallel relative to the lens body.

19. The lens of claim 18, wherein the diameter of the optic is less than 7 mm.

20. The lens of claim 19, wherein the width of the distal end of the haptic base is less than half the diameter of the optic.

21. The lens of claim 18, wherein the at least one haptic base extends from the lens body at less than 45° degrees.

22. The lens of claim 21, wherein the at least one haptic base extends from the lens body at less than 30° degrees.

23. The lens of claim 18, wherein the optic is a refractive optic.

24. The lens of claim 18, wherein the optic is a diffractive optic.

25. The lens of claim 24, wherein the diffractive optic is a multi-order diffractive structure having a plurality of zones which define Zone boundaries at which light incident on the structure experiences an optical phase shift, and diffracts light of each of the wavelengths in a different diffractive order, m, such that m > 1, to said focus, thereby providing a plural order diffractive singlet.

26. The lens of claim 18, wherein the optic comprises a refractive component and a diffractive component.

27. A haptic tail comprising:
a haptic base; and a haptic footplate comprising an end proximal to the haptic base and a distal end, wherein the footplate extends from the haptic base at an angle less than 65° degrees, and wherein the proximal end of the footplate has a width that is approximately half that of the distal end of the footplate.

28. The haptic tail of claim 27, wherein the haptic base extends in an ascending curve from the haptic footplate.

29. The haptic tail of claim 28, wherein the haptic base extends from the haptic tail at less than 45° degrees.

30. The haptic tail of claim 29, wherein the haptic base extends from the haptic tail at less than 30° degrees.

31. An intraocular lens (IOL) comprising:
an optic defining a vertical optical axis;
a haptic base having a proximal portion in connection with the optic and extending outwardly from the optical axis through a transition portion into a distal end portion, wherein the transition portion extends vertically downward from the proximal portion through two generally opposing angles of curvature into the distal portion and acts to elevate the proximal portion from the distal portion; and
a haptic tail having a proximal portion in connection with the distal portion of the haptic body and extending generally horizontally outward into a pair of haptic footplates.

32. The intraocular lens of claim 31 , wherein the haptic base comprises a thin membrane.
33. A method of implanting an anterior chamber intraocular lens, comprising:
providing an intraocular lens comprising an optic disposed within a lens body and a haptic base extending from the lens body in a descending arc with a slope to a haptic tail, wherein the haptic tail comprises a haptic footplate extending from the haptic base, wherein the slope of the arc of the haptic base increases upon implantation of the intraocular corrective lens in a recipient's eye;

creating an incision in an eye, wherein the eye comprises an anterior chamber and a chamber angle, wherein the incision is approximately less than 2 mm in length and provides access to the eye's anterior chamber; and
introducing the intraocular lens into the anterior chamber of the eye, whereby the haptic footplate is introduced into the chamber angle of the eye.

34. The method of claim 33, wherein no peripheral iridectomy is performed.