Lens implant
AssigneeAccommo AG
InventorEduard Anton Haefliger
Life of this patent
Estimating the term…
Abstract
A lens implant serves to replace the lens body of an eye and possesses substantially the same size and shape. It is elastic such that the eye gets back its capability for accommodation. The lens implant has two parts with differing refractive indices and/or differing shapes, which allows to adapt the focal length and shape to specific requirements in simple manner. A distal part is prefabricated as pre-made lens part, while a proximal part can preferably be brought into the lens capsule in a flowable state.
Claims20
A lens implant for placement into the lens capsule and for replacing the lens body of an eye, the lens implant being shaped like a natural lens body, with a distal surface and a proximal surface, wherein the distal surface has a stronger curvature than the proximal surface, the lens implant comprising:
- a first portion comprising a flowable material which can be cured intra-ocularly to an elastically deformable state;
- and a second portion comprising a solid material having a refractive index or an elastic deformability that differs from the one of the first portion wherein the second portion forms the distal surface, and wherein the first portion forms the proximal surface,
- wherein a diameter of the first portion perpendicular to a focal axis of the lens exceeds a diameter of the second portion.
A lens implant for placement into the lens capsule and for replacing the lens body of an eye, the lens implant being shaped like a natural lens body, with a distal surface and a proximal surface, wherein the distal surface has a stronger curvature than the proximal surface, the lens implant comprising:
- a first deformable part, which can be cured from a flowable to an elastically deformable state;
- and a second part having a refractive index or an elastic deformability that differs from the one of the first part, wherein the second part comprises a bag filled by a filling material and forms the distal surface, and wherein the first part forms the proximal surface,
- wherein a diameter of the first part perpendicular to a focal axis of the lens exceeds a diameter of the second part.
A lens implant for placement into the lens capsule and for replacing the lens body of an eye, the lens implant configured to replace a natural lens body, with a distal surface and a proximal surface, wherein the distal surface has a stronger curvature than the proximal surface, the lens implant having a convex proximal surface with a radius of curvature between 8.4 and 13.8 mm, a convex distal surface with a radius of curvature between 4.6 and 7.5 mm, and a thickness between 2.8 and 5.5 mm, said lens implant comprising:
- a first deformable part, which can be cured from a flowable to an elastically deformable state;
- and a second part comprising a bag filled by a filling material and having a refractive index or an elastic deformability that differs from the one of the first part, wherein the second part forms the distal surface, and wherein the first part forms the proximal surface;
- wherein the first part is cureable intraocularly from a flowable to an elastically deformable state.
A method of replacing the lens body of an eye by a lens implant, comprising the steps of:
- removing the lens body from the lens capsule of the eye;
- introducing a preshaped, solid, elastically deformable distal lens part into the lens capsule and positioning it at a distal end of the lens capsule;
- and
- after positioning the distal lens part, introducing a flowable filling material into the lens capsule at a proximal side of the distal lens part for forming of a proximal proximal part of the lens implant, wherein the flowable material is cured intraocularly.
A method of replacing the lens body of an eye by a lens implant, comprising the steps of:
- removing the lens body from the lens capsule of the eye;
- introducing a preshaped, solid, elastically deformable distal lens part into the lens capsule and positioning it at a distal end of the lens capsule;
- and
- after positioning the distal lens part, introducing a flowable filling material into the lens capsule at a proximal side of the distal lens part for forming of a proximal proximal part of the lens implant, wherein the eye is accommodated to infinity during a curing of the flowable filling material.
A method of replacing the lens body of an eye by a lens implant, the method comprising the steps of:
- removing the lens body from the lens capsule of the eye;
- introducing a solid, elastically deformable distal lens part into the lens capsule and positioning it at a distal end of the lens capsule;
- introducing a flowable filling material into the lens capsule at a proximal side of the distal lens part for forming of a proximal proximal part of the lens implant after the first lens part is positioned;
- and
- curing the flowable filling material intraocularly after the flowable filling material has been introduced.
Dependencies are inferred from the claim text.