Accommodating Intraocular Lens (Aiol) and Discrete Components Therefor
AssigneeNuLens Ltd.
InventorBen Nun Joshua
Life of this patent
Estimating the term…
Abstract
Accommodating intraocular (AIOL) assemblies (31) for enabling post implantation in situ manual selective displacement of an AIOL (33) along a human eye's visual axis relative to stationary anchor points. Axial displacement may be over a continuous range or alternatively at discrete axial stopping positions typically from about 100 μm to about 300 μm apart. Novels AIOLs designed to be at least partially folded for facilitating insertion into a human eye through a relatively small incision.
Claims51
An accommodating intraocular lens (AIOL) assembly for self-anchoring implantation in a human eye having a visual axis, a sclera of tough connective tissue, an annular ciliary sulcus, and a sphincter-like ciliary body for tensioning a capsular diaphragm in an anterior direction along the visual axis on its relaxation from a contracted ciliary body state to a relaxed ciliary body state, the AIOL assembly comprising:
- (a) an accommodating intraocular lens (AIOL) having a longitudinal axis intended to be co-directional with the human eye's visual axis, a leading surface, a trailing surface, and at least one shape memory optical element resiliently elastically deformable between a non-compressed shape with a first Diopter strength in a non-compressed state of said AIOL and a compressed shape with a second Diopter strength different than said first Diopter strength in a compressed state of said AIOL whereby said AIOL has a continuously variable Diopter strength between a minimum Diopter strength for distance vision and a maximum Diopter strength for near vision;
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- (b) a haptics system having a longitudinal axis intended to be co-directional with the human eye's visual axis, and a main body with at least two elongated haptics extending therefrom in opposite directions in a plane perpendicular to its longitudinal axis, each said haptics having at least one pointed puncturing member for penetrating the tough connective tissue of the human eye's sclera for self-anchoring implantation of said haptics system in the human eye's annular ciliary sulcus at at least two spaced apart stationary anchor points for retaining said AIOL along the human eye's visual axis at an in situ manually selectively displaceable desired position therealong relative to said at least two stationary anchor points for urging said trailing surface against the human eye's capsular diaphragm from an anterior direction for determining said AIOL's Diopter strength at said desired position whereupon relaxation of the human eye's ciliary body tensions its capsular diaphragm against said trailing surface from a posterior direction for affecting said AIOL's Diopter strength.
An accommodating intraocular lens (AIOL) for implantation in a human eye having a visual axis, a sclera of tough connective tissue, an annular ciliary sulcus, and a sphincter-like ciliary body for tensioning a capsular diaphragm in an anterior direction along the visual axis on its relaxation from a contracted ciliary body state to a relaxed ciliary body state, the AIOL having a longitudinal axis intended to be deployed co-directional with the human eye's visual axis, the AIOL comprising:
- (a) a hollow flattened sphere shaped housing including an annular anterior member with a leading surface having an internal rim defining an aperture, a posterior member with a trailing surface, and a shape memory optical element resiliently elastically deformable between a non-compressed shape with a first Diopter strength in a non-compressed state of the AIOL and a compressed shape with a second Diopter strength different than said first Diopter strength in a compressed state of the AIOL, said at least one shape memory optical element having a leading surface including a central portion exposed through said aperture;
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- (b) a tubular casing mounted on said housing for reciprocation relative to said posterior member for selectively compressing said shape memory optical element from its non-compressed shape to its compressed shape for bulging into said casing relative to said non-compressed shape whereby said AIOL has a continuously variable Diopter strength from a minimum Diopter strength for distance vision and a maximum Diopter strength for near vision.
An accommodating intraocular lens (AIOL) for implantation in a human eye having a visual axis, a sclera of tough connective tissue, an annular ciliary sulcus, and a sphincter-like ciliary body for tensioning a capsular diaphragm in an anterior direction along the visual axis on its relaxation from a contracted ciliary body state to a relaxed ciliary body state, the AIOL having a longitudinal axis intended to be deployed co-directional with the human eye's visual axis, the AIOL comprising a housing including an anterior member with a leading surface, a posterior member with a trailing surface, a leading shape memory optical element adjacent said anterior member and resiliently elastically deformable between a non-compressed shape in a non-compressed state of the AIOL and a compressed shape in a compressed state of the AIOL, and a trailing shape memory optical element adjacent said posterior member and elastically deformable between a non-compressed shape in the AIOL's said non-compressed state and a compressed shape in the AIOL's said compressed state for selectively bulging into said leading shape memory optical element on application of a compression force along said longitudinal axis against said trailing surface from a posterior direction for modifying the shape of said leading shape memory optical element with respect to its non-compressed shape in the AIOL's said non-compressed state.
A haptics system for retaining an intraocular lens in a human eye having a visual axis and including a sclera of tough connective tissue, and an annular ciliary sulcus, the haptics system having a longitudinal axis intended to be co-directional with the human eye's visual axis, the haptics system comprising a main body with at least two elongated haptics extending therefrom in opposite directions in a plane perpendicular to the longitudinal axis, each haptics having an attachment plate with at least two pointed puncturing members each terminating at a tip for penetrating the tough connective tissue of the human eye's sclera for self-anchoring implantation of the haptics system in the human eye's annular ciliary sulcus at least two spaced apart stationary anchor points, said at least two pointed puncturing members having a minimum tip separation between their tips of at least 1 mm in said plane perpendicular to said longitudinal axis.
Dependencies are inferred from the claim text.