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, wherein the lens portion includes a peripheral sidewall having an elliptical shape in a top view of the intraocular lens, the elliptical shape defining a major axis and a minor axis, wherein the lens portion is an astigmatic lens and includes a first surface that is curved in both a side view along the major axis and a side view along the minor axis, and a second, cylindrical surface that is curved in a side view along one of the major and minor axes and not curved in a side view along another one of the major and minor axes; and
an outer portion disposed around the lens portion, having a support surface that abuts and completely surrounds the sidewall of the lens portion in the top view, the support surface joining the sidewall at a non-zero angle in a side view to form a step feature on an exterior of the intraocular lens.
2. The intraocular lens of claim 1 , further comprising at least two haptics extending from the outer portion for supplying a spring force to the lens portion.