Intraocular lens

• US 4,718,906 A
• Filed: 03/11/1986
• Issued: 01/12/1988
• Est. Priority Date: 03/11/1986
• Status: Expired due to Fees

• Current Assignee: Richard J. Mackool
• Original Assignee: Richard J. Mackool
• Inventors: Mackool, Richard J.
• Primary Examiner(s): FRINKS, RONALD
• Application Number:
  US06/838,545
• Time in Patent Office: 672 Days
• Field of Search: 623/6
• US Class Current: 623/6.21
• CPC Class Codes: A61F 2/1616 Pseudo-accommodative, e.g. multifocal or enabling monovision

Abstract

An intraocular lens consisting of a relatively soft plastic capable of being folded, and a harder plastic mounted on, or in, the relatively soft plastic, and wherein the relatively harder plastic resists folding when the soft plastic is folded, the lens further comprising one or more haptics attached to the harder plastic for retaining the lens in a selected location in the eye.

Claims

1. A plastic intraocular lens capable of being inserted into an eye through an incision which is smaller than the diameter of the lens comprising a first plastic capable of being folded by an ophthalmic surgeon during the process of inserting the intraocular lens during eye surgery, a second plastic harder than the first plastic capable of resisting folding when the first plastic is folded;

the second plastic forming a thin bar across a part of the surface of the first plastic;

one or more haptics connected to the second plastic; and

positioning means on the second plastic to permit the positioning of the intraocular lens in the eye after insertion by the surgeon.

2. The intraocular lens according to claim 1 in which the second plastic is located in the edge of the first plastic and extends along approximately 180°

of the aforesaid edge.

3. The intraocular lens according to claim 1 in which the second plastic crosses the diameter of the first plastic.

4. A plastic intraocular lens capable of being inserted into an eye through an incision smaller than the unfolded diameter of the intraocular lens comprising a first plastic capable of being folded by an opthalmic surgeon during the process of inserting the intraocular lens during eye surgery;

a second plastic harder than the first plastic, located on or in the first plastic capable of resisting folding when the first plastic is folded;

haptics attached to the second plastic for retaining the intraocular lens in the eye after its insertion;

the second plastic having positioning means to move the intraocular lens within the eye to a selected, targeted location;

the first plastic being grooved across its surface and the second plastic is located in said groove, with more than one band of said second plastic being located in said first plastic, each band being vertically spaced from the other band.