Intracorneal lens

• US 4,799,931 A
• Filed: 05/14/1986
• Issued: 01/24/1989
• Est. Priority Date: 05/14/1986
• Status: Expired due to Term

• Current Assignee: Lindstrom, Richard L.
• Original Assignee: Lindstrom, Richard L.
• Inventors: Lindstrom, Richard L.
• Primary Examiner(s): Frinks, Ronald L.
• Application Number:
  US06/863,049
• Time in Patent Office: 986 Days
• Field of Search: 623/4-6, 128/1 R
• US Class Current: 623/5.13
• CPC Class Codes: A61F 2/0077 Special surfaces of prostheses, e.g. for improving ingrowth A61F2/30767 takes precedence
• CPC Class Codes: A61F 2/145 Corneal inlays, onlays, or lenses for refractive correction
• CPC Class Codes: A61F 2/1451 Inlays or onlays
• CPC Class Codes: A61F 2/15 Implant having one or more holes, e.g. for nutrient transport, for facilitating handling
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 2/1648 Multipart lenses
• CPC Class Codes: A61F 2002/1699 Additional features not otherwise provided for
• CPC Class Codes: A61L 2430/16 for reconstruction of eye parts, e.g. intraocular lens, cornea
• CPC Class Codes: A61L 27/14 Macromolecular materials
• CPC Class Codes: A61L 27/18 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 27/34 Macromolecular materials
• CPC Class Codes: G02C 7/041 bifocal; multifocal

Abstract

An intracorneal lens with at least one hole such as central pinhole, or a, plurality of pinholes or the like; and, a material filling the holes or a material filling the pinholes, and coating the lens. The intracorneal lens can be of any high index of refraction material. The material filling the holes as well as coating the lens can be a gas permeable polymer or metabolite permeable material, a biocompatible polymer or biocompatible material, or a neutral or negatively charged material.

Claims

1. Intracorneal lens comprising:

a. intracorneal lens optic of a high index of refraction polymer material selected from the group consisting of polysulfone, polyether ketone, or polycarbonate, the optic including a plurality of holes of a diameter in the range of 0.00001 mm to 1 mm; and

,

b. a gas permeable biocompatible material coating on at least a portion of said lens and filling said holes, said coating and said filling material being selected from the group consisting of silicon, hydrogel or cellulose acetate butyrate.

2. Intracorneal lens of claim 1 wherein said coating is on both sides of said lens and in said holes of said lens.

3. Intracorneal lens of claim 1 wherein said material in said holes and said material coating said lens are different materials.