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US 12,193,929 B2Granted
In-situ adjustable intraocular lens
AssigneeAlcon Inc.
InventorsAli Akinay, Xuwei Jiang, Jian Liu, Jingbo Liu
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Abstract
The present disclosure provides an intralocular-lens (IOL) or ophthalmic device including an optic and at least one haptic, at least a portion of which is formed from a photoresponsive shape memory polymer network, such as a polydomain azo liquid crystalline polymer network (PD-LCN). The present disclosure further provides systems and methods for adjusting the position of such an IOL or other ophthalmic device using polarized laser radiation.
Claims4
An in-situ adjustable ophthalmic device, comprising:
- a ring-shaped intraocular base comprising an opening configured to receive an optic of an intraocular lens (IOL);
- and
- an intraocular lens (IOL) comprising an optic and at least two haptics, each haptic coupled to the optic via a haptic junction, the at least two haptics configured to engage with the intraocular base,
- wherein each of the haptic junctions comprises a photoresponsive shape memory polymer network,
- wherein the intraocular base and IOL are configured to be positioned in a capsular bag of a patient, and further configured such that irradiation of the haptic junctions with polarized laser radiation induces a shape change of the photoresponsive shape memory polymer network, and therefore a shape change of the haptics, to cause the IOL to be rotated around a center of the optic, with respect to the intraocular base, in a clockwise direction or counterclockwise direction,
- wherein a first haptic junction of the haptic junctions comprises the photoresponsive shape memory polymer network in a first placement, and a second haptic junction of the haptic junctions comprises the photoresponsive shape memory polymer network in a second placement different from the first placement, such that the at least two haptics are configured to respond differently to irradiation.
3 more elements
Dependencies are inferred from the claim text.