Back to results
US 4,994,082 AGranted
Accommodating intraocular lens
AssigneeOphthalmic Ventures Limited Partnership
InventorsWilliam D. Richards, Ernesto E. Blanco
Life of this patent
Estimating the term…
Abstract
An intraocular lens assembly including an adjustable-power lens assembly and an adjustment mechanism coupled between the lens assembly and the ciliary muscle of the eye in which the lens assembly is implanted for adjusting the power of the lens assembly in response to contraction or relaxation of the ciliary muscle.
Claims17
An adjustable-power intraocular lens comprising:
- lens means adapted for implantation in an eye, for causing light rays entering the eye to converge at a selected focal point or plane, the location of which varies along a first axis in analog fashion between first and second locations with movement of said lens means along a selected axis between first and second positions on said selected axis wherein said selected axis extends substantially perpendicular to said first axis;
- and
- adjustment means connected to said lens means and couplable to the ciliary muscle of said eye for causing said lens means to move along said selected axis between said first and second positions in response to contraction and relaxation of said ciliary muscle.
An accommodating intraocular lens comprising:
- at least one lens, the power of which is adjustable by moving said at least one lens along an axis between first and second focal positions, said at least one lens being designed for implantation in an eye having a ciliary muscle which is capable of expanding and contracting radially about a central axis;
- and
- a haptic assembly, couplable to said at least one lens and adapted to transmit movement from the ciliary muscle of said eye to said at least one lens to that said at least one lens moves along said axis between said first and second focal positions in response to contraction and relaxation of said ciliary muscle, wherein said axis extends substantially perpendicular to said central axis of said ciliary muscle.
An adjustable-power intraocular lens comprising:
- a first lens which is adapted for implantation in an eye;
- a second lens which is adapted for implantation in said eye proximate said first lens;
- and
- adjustment means connected to said first and second lenses and couplable to the ciliary muscle of the eye (1) for supporting said first and second lenses adjacent one another so that the center axes thereof are substantially coaxial, and (2) for causing said first and second lenses to move (a) apart from one another along said center axes thereof in response to contraction of said ciliary muscle and (b) toward one another along said center axes thereof in response to relaxation of said ciliary muscle.
1 more element
Dependencies are inferred from the claim text.