Intraocular lens
View Patent ↗An IOL having an optic and a peripheral stabilizing ring. The optic and the ring are connected by a flexible bridge. An area on the ring coinciding with a feature on the optic helps to locate the optic within the ring in an unstressed state until the capsular bag collapses and locks the optic into place.
1. An intraocular lens, comprising:
a) a support ring configured in a circular shape, the support ring having an inner surface having an inner diameter between 6.0 millimeters and 8.5 millimeters in the circular shape;
b) an optic integrally formed-with the support ring, comprising a bridge on one side of the optic, wherein the bridge, the optic and the support ring are formed as a single contiguous piece from a soft, foldable material;
c) a tab integrally formed with the optic on another side of the optic, the tab comprising a free end opposite the optic, the free end of the tab extending to the inner surface of the support ring in the circular shape; and
d) a locating feature on the inner surface of the support ring, the locating feature sized to allow the free end of the tab to be inserted therein, the locating feature cooperating with the tab when the free end is inserted into the locating feature so as to center the optic within the support ring in an unstressed state.
2. The lens of claim 1 wherein the locating feature comprises a channel with a slot.
3. The lens of claim 1 wherein the locating feature comprises bumps or protuberances projecting inwardly from the support ring and toward the optic.
4. The lens of claim 1 wherein the locating feature comprises a ledge and a locking ridge.
5. The lens of claim 1 wherein the locating feature comprises a ledge having a slot, the locating feature projecting inwardly from the support ring and toward the optic.
6. The lens of claim 1 wherein the locating feature comprises a channel having an open slot, the channel projecting inwardly from the support ring and toward the optic.
7. An intraocular lens, comprising:
a) a support ring configured in a circular shape, the support ring having an inner surface having an inner diameter between 6.0 millimeters and 8.5 millimeters in the circular shape;
b) an optic integrally formed-with the support ring, comprising a bridge on one side of the optic, wherein the bridge, the optic and the support ring are formed as a single contiguous piece from a soft, foldable material;
c) a tab integrally formed with the support ring extending from the inner diameter of the circular shape to the optic, the tab comprising a free end opposite the support ring; and
d) a locating feature on the optic, the locating feature sized to allow the free end of the tab to be inserted therein, the locating feature cooperating with the tab when the free end is inserted into the locating feature so as to center the optic within the support ring in an unstressed state.
8. The lens of claim 7 wherein the locating feature comprises bumps or protuberances projecting outwardly from the optic and toward the support ring.