Intraocular lenses with fixated haptics
Intraocular lenses for implanting within the natural capsular bag of the human eye having features on the outer ends or portions of the lenses to fixate the lens within the natural capsular bag following implantation.
1. An accommodating intraocular lens designed for implanting within a natural capsular bag of a human eye, said lens implant comprising:
a lens body having anterior and posterior sides and including a flexible and solid optic having an optical axis, and two or more plate haptics extending radially and spaced about said optic, said haptics having inner ends adjacent to said optic and outer ends extending radially from said optic, said plate haptics having thin narrow lateral edges and wider anterior and posterior surfaces than the narrow lateral edges, each haptic having a rectangular portion adjacent to and as wide as the optic and a straight portion therein which is thinner in the direction of the optical axis than adjacent portions thereof, and adjacent and tangential to the optic forming a hinge; and
a plurality of protuberances extending outwardly from the distal ends of the haptics in the direction of the optical axis from at least one of the anterior and/or posterior sides of one or more of said haptics to fixate said haptic in a natural capsular bag of an eye.
2. A lens as in claim 1 , wherein at least one of said haptics having one or more notches spaced about said lateral edges of said haptics.
3. A lens according to claim 2 , wherein said notches have an edge portion.
4. A lens according to claim 3 , wherein said edge portion is disposed substantially transverse to a longitudinal axis of said haptic.
5. A lens according to claim 3 , wherein said edge portion is disposed substantially transverse to a side edge of said haptic.
6. The lens according to claim 1 , wherein said haptics have lateral edges, and
at least one of said haptics has one or more notches spaced about said lateral edges of said haptics.
7. The lens according to claim 6 , wherein said lateral edges of said haptics are parallel to each other, or tapered outwardly from the optic, or tapered inwardly from the optic.
8. A lens according to claim 1 , wherein said haptics have at least one protuberance extending from at least one surface of each haptic.
9. The lens according to claim 8 , wherein the protuberances are prong portions with globular knob end portions.
10. The lens according to claim 8 , wherein the protuberances extend outwardly from the anterior and/or posterior sides.
11. The lens according to claim 8 , wherein the protuberances extend outwardly from the peripheral border of said haptic.
12. The lens according to claim 8 , wherein at least one of said haptics has one or more notches with an edge portion and the notches being spaced about said lateral edges of said haptics, said edge portions being disposed at a substantial angle to a longitudinal axis of said haptic.
13. A lens according to claim 1 wherein the haptics are flexible along at least a portion of their length to allow the optic to move anteriorly and/or posteriorly relative to the haptics.
14. An accommodating intraocular lens designed for implanting within a natural capsular bag of a human eye, said lens implant comprising:
a lens body having anterior and posterior sides and including an optic having an optical axis and two or more plate haptics extending radially and spaced about said optic, said haptics having rectangular shaped inner ends adjacent to and as wide as said optic and outer ends extending radially from said optic, said plate haptics having thin narrow lateral edges, wider anterior and posterior surfaces than the narrow lateral edges, each haptic having a straight portion in the inner end thereof which is thinner in the direction of the optical axis than adjacent portions thereof, and adjacent and tangential to the optic forming a hinge; and
at least one of said haptics having one or more notches with an edge portion and the notches being spaced about said lateral edges of said haptics, said edge portion being disposed at a substantial angle to a longitudinal axis of said haptic.
15. A lens according to claim 14 wherein the haptics are flexible along at least a portion of their length to allow the optic to move anteriorly and/or posteriorly relative to the haptics.
16. An accommodating intraocular lens designed for implanting within a natural capsular bag of a human eye, said lens implant comprising:
a lens body having anterior and posterior sides and including an optic having an optical axis and two or more plate haptics extending radially and spaced about said optic, said haptics having rectangular shaped inner ends adjacent to and as wide as said optic and outer ends extending radially from said optic, said plate haptics having thin narrow lateral edges, wider anterior and posterior surfaces than the narrow lateral edges, each haptic having a straight portion in the inner end thereof which is thinner in the direction of the optical axis than adjacent portions thereof and adjacent and tangential to the optic forming a hinge; and
at least one of said haptics having one or more notches with an edge portion and the notches being spaced about said lateral edges of said haptics, said edge portion being disposed at a substantial angle to a side edge of said haptic.
17. A lens according to claim 16 wherein the haptics are flexible along at least a portion of their length to allow the optic to move anteriorly and/or posteriorly relative to the haptics.