Intraocular lens with elastic mask

• US 10,004,593 B2
• Filed: 08/07/2014
• Issued: 06/26/2018
• Est. Priority Date: 08/13/2009
• Status: Active Grant

• Current Assignee: Acufocus, Inc. (Bausch Health Cos., Inc.)
• Original Assignee: Acufocus, Inc. (Bausch Health Cos., Inc.)
• Inventors: Webb, R. Kyle, Siems, Daniel David, Reboul, Adam C., Benz, Patrick H., Christie, Bruce Arthur
• Primary Examiner(s): PREBILIC, PAUL B
• Application Number:
  US14/454,585
• Publication Number:
  US 20150073549A1
• Time in Patent Office: 1,419 Days
• Field of Search: 623 617
• CPC Class Codes: A61F 2/15 Implant having one or more holes, e.g. for nutrient transport, for facilitating handling
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2/1648 Multipart lenses
• CPC Class Codes: A61F 2/1659 having variable absorption coefficient for electromagnetic radiation, e.g. photochromic lenses
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2250/0018 differing in elasticity, stiffness or compressibility
• CPC Class Codes: A61F 2250/0053 differing in optical properties
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: B29C 39/026 characterised by the shape of the surface
• CPC Class Codes: B29C 39/10 incorporating preformed parts or layers, e.g. casting around inserts or for coating articles coating a surface by casting in general B05D1/30, B29C39/126 takes precedence
• CPC Class Codes: B29D 11/00048 composed of parts with dissimilar composition B29D11/00057 takes precedence
• CPC Class Codes: B29D 11/00442 Curing the lens material
• CPC Class Codes: B29K 2101/12 Thermoplastic materials
• CPC Class Codes: B29K 2701/12 Thermoplastic materials
• CPC Class Codes: B29K 2715/00 Condition, form or state of preformed parts, e.g. inserts
• CPC Class Codes: B29K 2995/0012 having particular thermal properties
• CPC Class Codes: B29K 2995/0046 Elastic
• CPC Class Codes: B29L 2011/0016 Lenses
• CPC Class Codes: B29L 2031/7532 Artificial members, protheses

Abstract

Intraocular implants and methods of making intraocular implants are provided. The intraocular implant can include a lens body having a lens material and a mask having a mask material. The lens body can be secured to the mask. The mask material can include a modulus of elasticity that is greater than or equal to a modulus of elasticity of the lens material.

Claims

1. An intraocular lens comprising:

an elastic lens body comprising lens material, the lens body being flexible enough to be injected through an incision less than 3.5 mm; and

an elastic mask with an aperture for improving depth of focus, the mask comprising an opacification agent and a mask material, the mask material being different from the lens material, the mask material being flexible and having a modulus of elasticity that is sufficiently matched with a modulus of elasticity of the lens material to reduce delamination between the mask and lens body.

2. The intraocular lens of claim 1, wherein the mask material comprises silicone.

3. The intraocular lens of claim 1, wherein the mask material comprises acrylic.

4. The intraocular lens of claim 1, wherein the mask comprises a plurality of holes characterized in that at least one characteristic selected from the group consisting of a hole size, hole shape, hole orientation, and hole spacing of the plurality of holes is varied to reduce the tendency of the holes to produce visible diffraction patterns.

5. The intraocular lens of claim 1, wherein the mask comprises a thickness of less than or equal to about 200 microns.

6. The intraocular lens of claim 1, wherein the lens body has an outer diameter between about 5 mm and about 6 mm.

7. The intraocular lens of claim 1, wherein the mask is embedded entirely between a posterior surface and an anterior surface of the lens body.

10. The intraocular lens of claim 1, wherein mask material comprises a polymer.

11. The intraocular lens of claim 1, wherein the mask material comprises a highly fluorinated polymer.

12. The intraocular lens of claim 1, wherein the mask material comprises polyvinylidene fluoride.

8. A method of manufacturing an intraocular lens, the method comprising:

forming a mask with an aperture for improving depth of focus from a mask material;

inserting a lens material into a mold; and

curing the lens material to form a lens body, the lens body comprising the mask therein wherein the lens body is flexible enough to be injected through an incision less than 3.5 mm;

the mask comprising an opacification agent and the mask material, the mask material being different from the lens material, the mask material being flexible and having a modulus of elasticity that is sufficiently matched with a modulus of elasticity of the lens material to reduce delamination between the mask and the lens body.

9. The method of claim 8, wherein forming the mask comprises forming a plurality of holes within a mask body, characterized in that at least one characteristic selected from the group consisting of a hole size, hole shape, hole orientation, and hole spacing of the plurality of holes is varied to reduce the tendency of the holes to produce visible diffraction patterns.