Apparatus for creating incisions to improve intraocular lens placement
A system and method for inserting an intraocular lens in a patient's eye includes a light source for generating a light beam, a scanner for deflecting the light beam to form an enclosed treatment pattern that includes a registration feature, and a delivery system for delivering the enclosed treatment pattern to target tissue in the patient's eye to form an enclosed incision therein having the registration feature. An intraocular lens is placed within the enclosed incision, wherein the intraocular lens has a registration feature that engages with the registration feature of the enclosed incision. Alternately, the scanner can make a separate registration incision for a post that is connected to the intraocular lens via a strut member.
1. An intraocular lens for replacing a natural lens in a lens capsule of a patient's eye, the intraocular lens comprising:
a lens portion configured to focus light passing therethrough;
at least two haptics extending from the lens portion for supplying a spring force to the lens portion within the lens capsule when the lens is implanted therein; and
wherein the lens portion, not the at least two haptics, comprises a peripheral edge having a circular shape except in a region having a registration feature radially extending from the peripheral edge, the registration feature configured to mate with one or more complementary registration features created on the lens capsule so as to orient the intraocular lens, wherein the intraocular lens comprises one and only one registration feature.
2. The intraocular lens of claim 1 , wherein the registration feature is an asymmetric shape of the peripheral edge.
3. The intraocular lens of claim 1 , wherein the registration feature is a protrusion formed in the peripheral edge.
4. The intraocular lens of claim 1 , wherein the one or more complementary registration features comprise a notch formed in the peripheral edge.
5. The intraocular lens of claim 1 , further comprising a flange surrounding the lens portion.
6. The intraocular lens of claim 5 , wherein the lens portion is configured to rotate within the flange.