Accommodating intraocular lens assemblies and accommodation measurement implant
The present invention pertains to accommodating intraocular lens (AIOL) assemblies including a haptics system for self-anchoring implantation in a human eye's annular ciliary sulcus for retaining an AIOL at a desired position along the human eye's visual axis, and an accommodation measurement implant (AMI) for determining accommodation and accommodation forces in an experimental set-up including an animal's eye.
1. An accommodating intraocular lens (AIOL) comprising:
an outer main body comprising a tubular casing;
an optical element containing a liquid supported by the outer main body, the optical element comprising an anterior-facing surface configured to be resiliently deformed to increase diopter strength of the optical element upon application of a compressive force against the optical element, wherein upon implantation of the AIOL in an eye, a visual axis of the eye extends through a central region of the anterior-facing surface and the anterior-facing surface forms an external surface of the accommodating intraocular lens;
a piston coupled to the tubular casing, the piston comprising a trailing end and an opposite leading end, wherein upon implantation of the AIOL in the eye, the piston is reversibly movable in response to accommodative eye movements such that the trailing end of the piston contacts eye tissue and the leading end of the piston is urged towards the optical element to resiliently deform the anterior-facing surface outward due to application of the compressive force against the optical element by the leading end of the piston, thereby causing the increase in diopter strength; and
at least two haptics extending outward from the main body forming at least two spaced apart, stationary anchor points upon implantation of the AIOL in the eye adapted to retain the AIOL in the eye.
2. The accommodating intraocular lens of claim 1 , wherein each of the at least two haptics comprises a penetrating member.
3. The accommodating intraocular lens of claim 1 , whereby the piston is movable from a posterior direction to an anterior direction along the visual axis of the eye.
4. The accommodating intraocular lens of claim 1 , wherein the AIOL has a first Diopter strength for distance vision purposes at rest and upon deformation of the anterior-facing surface outward to a shape with a second Diopter strength higher than the first Diopter strength.
5. The accommodating intraocular lens of claim 1 , wherein the main body is a ring having an axial length along a longitudinal axis, the ring surrounding an axial length of the optical element such that at least a portion of the optical element is contained by the main body.
6. The accommodating intraocular lens of claim 1 , wherein the liquid of the optical element comprises a silicone-based or water-based liquid.
7. The accommodating intraocular lens of claim 6 , further comprising a second optical element supported by the outer main body and optically aligned with the optical element.