Accommodating intraocular lens

Patent metadata

Field	Value
Publication number	US-2016008126-A1
Application number	US-201514860162-A
Country	US
Kind code	A1
Filing date	Sep 21, 2015
Priority date	Mar 21, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

An intraocular lens (IOL) for implantation within a capsular bag of a patient's eye comprises an optical structure and a haptic structure. The optical structure comprises a planar member, a plano convex member, and a fluid optical element defined between the planar member and the plano convex member. The fluid optical element has an optical power. The haptic structure couples the planar member and the plano convex member together at a peripheral portion of the optical structure. The haptic structure comprises a fluid reservoir in fluid communication with the fluid optical element and a peripheral structure for interfacing to the lens capsule. Shape changes of the lens capsule cause one or more of volume or shape changes to the fluid optical element in correspondence to deformations in the planar member to modify the optical power of the fluid optical element.

First claim

What is claimed is:

1 . An accommodating intraocular lens, comprising:
a first lens component comprising a polymer material; a second lens component comprising the polymer material; and a cured adhesive comprising the polymer between at least a portion of the first component and the second component in order to bond the first lens component to the second lens component and define a chamber.

2 . An accommodating intraocular lens as in claim 1 , wherein the chamber comprises an optical element.

3 . An accommodating intraocular lens as in claim 1 , further comprising a fluid within the chamber having an index of refraction greater than an index of refraction of an aqueous humor of an eye of about 1.336 and wherein one or more of the first component or the second component is configured to deform to increase an optical power of the accommodating intraocular lens.

4 . An accommodating intraocular lens as in claim 1 , further comprising one or more haptics to engage a wall of a capsular bag of the eye and increase curvature of one or more of the first lens component or the second lens component in response to the wall of the capsular bag contracting in order to increase optical power of the accommodating intraocular lens.

5 . An accommodating intraocular lens as in claim 1 , further comprising a fluid, the fluid comprising one or more of a solution, an oil, a silicone, oil, a solution of high molecular weight molecules or high molecular weight dextran.

6 . An accommodating intraocular lens as in claim 1 , further comprising a seam comprising the adhesive, the seam extending circumferentially along the at least a portion of the first component and the second component.

7 . An accommodating intraocular lens as in claim 1 , wherein the first lens component comprises a first disc shaped structure and the second lens component comprises a second disc shaped structure on opposite sides of the chamber and wherein an annular structure extends between the first disc shaped structure and the second disc shaped structure to separate the first disc shaped structure from the second disc shaped structure and define the chamber.

8 . An accommodating intraocular lens as in claim 1 , wherein the intraocular lens comprises a stiff configuration prior to implantation and a soft configuration when implanted and wherein the intraocular lens comprises the soft configuration when hydrated and each of the first lens component, the second lens component and the cured adhesive expand a substantially similar amount from the stiff configuration to the soft configuration in order to inhibit stress at interfaces between the adhesive and the first and second components.

9 . An accommodating intraocular lens as in claim 1 , wherein the first lens component comprises a first disc shaped optical structure comprising one or more of a lens, a meniscus, a meniscus lens, or a flat plate, and wherein the second lens component comprises a second disc shaped optical structure comprising one or more of a lens, a meniscus, a meniscus lens, or a flat plate.

10 . An accommodating intraocular lens as in claim 1 , wherein the adhesive comprises a prepolymer of the polymer material; optionally wherein the adhesive comprises at least one of: ethylene glycol dimethacrylate (EGDMA), diethylene glycol dimethacrylate (DEGDMA), triethylene glycol trimethacrylate (TEGDMA), hydroxyethyl methacrylate (HEMA), or methyl methacrylate (MMA); and optionally wherein the prepolymer comprises one or more of a monomer, an oligomer, a partially cured monomer, particles, or nano particles of the polymer material.

11 . An accommodating intraocular lens as in claim 1 , wherein the first lens component and the second lens component are molded from the polymer material.

12 . An accommodating intraocular lens as in claim 1 , wherein the first lens component comprises a first disc shaped structure and the second component comprises a second disc shaped structure and wherein the first component and the second component define the chamber with the first and second disc shaped structures on opposite sides of the chamber when bonded together

13 . An accommodating intraocular lens as in claim 1 , wherein a change in optical power of the accommodating intraocular lens comprises a response to a transfer of fluid into or out of the chamber from a fluid reservoir defined between the first and second lens components.

14 . An accommodating intraocular lens as in claim 1 , wherein water present in the lens capsule of the patient's eye transfers into or out of the chamber through the polymeric material of the first and second lens components to achieve an osmotic equilibrium with fluid present in the lens capsule when the intraocular lens is placed therein.

15 . An accommodating intraocular lens as in claim 1 , wherein the intraocular lens is sufficiently flexible to be folded into a reduced cross-section delivery configuration; optionally wherein the reduced cross-section delivery configuration of the intraocular lens is attained by folding or rolling the intraocular lens around a delivery axis normal to an optical axis of the intraocular lens; and optionally wherein the reduced cross-section delivery configuration of the intraocular lens is attained by advancing the intraocular lens through a delivery tube or aperture.

Assignees

• Shifamed Holdings Llc

Inventors

• Salahieh Amr
• Argento Claudio P
• Saul Tom
• Vaughan Bob
• Willis Eric

Classifications

• A61F2/1629

  for changing longitudinal position, i.e. along the visual axis when implanted · CPC title

• B29D11/023

  Implants for natural eyes · CPC title

• B29D11/00028

  Bifocal lenses; Multifocal lenses · CPC title

• A61F2250/0018

  differing in elasticity, stiffness or compressibility · CPC title

• A61F2002/1682

  having mechanical force transfer mechanism to the lens, e.g. for accommodating lenses · CPC title