Claims
- 1. An intraocular lens for implantation in the capsular bag, comprising:
an optic having a circular periphery centered on an optical axis, the optic adapted to focus light toward a retina of an eye and provide a vision correction; and a fixation member attached to the optic periphery and extending outward therefrom generally spirally around at least half of the optic, the fixation member being sized to contact the interior of the capsular bag of the eye and adapted to enhance accommodating movement of the optic.
- 2. The intraocular lens of claim 1, wherein the fixation member extends around at least three-quarters of the optic.
- 3. The intraocular lens of claim 1, wherein the fixation member has a length of at least about 6 mm.
- 4. The intraocular lens of claim 1, wherein there are two of the fixation members symmetrically disposed about a plane through the optical axis.
- 5. The intraocular lens of claim 4, further including a meridian plane defined to pass through the optical axis and divide the optic into leading and trailing halves, the meridian plane being perpendicular to the direction of insertion of the IOL, wherein a leading one of the fixation members is at least partly located in the leading half of the IOL and attaches to the optic periphery on the meridian plane or in the trailing half.
- 6. The intraocular lens of claim 1, wherein the optic and fixation member are integrally formed as a single homogeneous piece.
- 7. The intraocular lens of claim 1, wherein the fixation member extends outward from the optic periphery and diverges into two beams that are sized to contact the interior of the capsular bag of the eye and provide accommodating movement to the optic.
- 8. The intraocular lens of claim 1, wherein the optic periphery has a relatively sharp posterior edge.
- 9. An intraocular lens,(IOL), comprising:
an optic having a circular periphery centered on an optical axis, the optic adapted to focus light toward a retina of an eye and provide a vision correction; a meridian plane defined to pass through the optical axis and divide the IOL into leading and trailing halves; and a pair of fixation members attached to the optic periphery, a leading fixation member being attached either on the meridian plane or in the trailing half of the IOL, and a trailing fixation member being attached either on the meridian plane or in the leading half of the IOL, both of the fixation members being sized to contact the interior of the capsular bag of the eye and adapted to enhance accommodating movement of the optic.
- 10. The intraocular lens of claim 9, wherein the fixation members each extend around at least three-quarters of the optic.
- 11. The intraocular lens of claim 9, wherein each fixation member has a length of at least about 6 mm.
- 12. The intraocular lens of claim 9, wherein the optic and fixation members are integrally formed as a single homogeneous piece.
- 13. The intraocular lens of claim 9, wherein each fixation member has an inner end adjacent the optic periphery and an outer end configured to contact the interior of the capsular bag of the eye, and wherein the outer end of the leading fixation member is in the leading half of the IOL and the outer end of the trailing fixation member is in the trailing half of the IOL.
- 14. The intraocular lens of claim 9, wherein each fixation member has an inner end adjacent the optic periphery and an outer end configured to contact the interior of the capsular bag of the eye, and further including a transition section interposed between the inner ends of the fixation members and the optic periphery, each transition section being angled with respect to the optical axis so as to offset the inner ends of each fixation member from an optic plane passing through the center of the optic and perpendicular to the optical axis.
- 15. An intraocular lens, comprising:
an optic having a circular periphery centered on an optical axis, the optic adapted to focus light toward a retina of an eye and provide a vision correction, the optic having an anterior face and a posterior face spaced apart on opposite sides of an optic plane perpendicular to the optical axis; a fixation member having an inner end and an outer end; and a transition section between the fixation member inner end and the optic periphery, the transition section having an inner portion connected to the optic periphery and an outer portion connected to the fixation member, the outer portion being displaced along the optical axis with respect to the inner portion in an anterior direction, and wherein the fixation member extends generally in a plane parallel to the optic plane but displaced therefrom along the optical axis in the anterior direction.
- 16. The intraocular lens of claim 15, wherein the optic periphery has a relatively sharp posterior edge.
- 17. The intraocular lens of claim 15, wherein the optic periphery has a relatively sharp anterior edge.
- 18. The intraocular lens of claim 15, wherein there are two of the fixation members and transition sections diametrically opposed across the optic.
- 19. The intraocular lens of claim 18, wherein each of the fixation members extends generally spirally about the optic.
- 20. The intraocular lens of claim 19, wherein each of the fixation members extends at least about halfway around the optic.
- 21. The intraocular lens of claim 15, wherein the fixation member is displaced by approximately 15° from the optic plane.
RELATED APPLICATION
[0001] This application claims the benefit of provisional application serial No. 60/348,708, filed Jan. 14, 2002. The disclosure of which is incorporated in its entirety herein by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60348708 |
Jan 2002 |
US |