Two part "L" -shaped Phakic IOL

a phakic iol and film frame technology, applied in the field of iol film frame, can solve the problems of difficult placement of the anterior chamber of the lens, early lenses experienced marked endothelial loss, and the lens was too heavy and large, so as to reduce the pressure against the angle

Inactive Publication Date: 2008-05-29
BLAKE LARRY W
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0020]Still further, the invention is a method of mounting a lens in the anterior chamber of an eye, having the steps of supporting a lens on

Problems solved by technology

Early IOL researchers were plagued with problems associated with the materials which were obtainable to them at the time (early 1950's) making the lenses too heavy and too large.
Surgery of the eye was in its infancy and therefore there were many problems with the surgical procedures.
Along with the early problems with the optics and surgical techniques, placement of a lens in the anterior chamber proved difficult because the anterior chamber is narrow (about 1.5 to 2.5 mm).
However, early lenses experienced marked problems with endothelial loss due to chafing against the early thick lenses.
Later lenses were able to reduce the significance of this problem, but still retained problems associated with placement of the IOL in the chamber angle.
Additionally, the tissue in the area is easily irritated and irritation initiates a growth of fibrous tissue, called synechiae.
This compromise is difficult to obtain.
In addition, although the results were excellent in the short-term, there was a significant problem in the long term with altered night vision, loss of endothelial cell populations and alteratio

Method used

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  • Two part "L" -shaped Phakic IOL
  • Two part "L" -shaped Phakic IOL
  • Two part "L" -shaped Phakic IOL

Examples

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Effect test

example 1

Insertion of the Two Part IOL Into the Eye

[0054]A 2 mm incision is made near the limbus of the eye. Buffers are injected into the anterior chamber. The frame is inserted as shown in FIGS. 5A-H by a rotation action. The surgeon grasps the folded optic with the outside (distal) eyelet leading forward. The surgeon then pushes the lens through the incision and hooks the distal eyelet onto the distal cleat of the frame. Then, the surgeon slowly opens the forceps while maintaining slight tension. The lens is then grasped near or onto the closest eyelet (proximal) and pulls it over the closer cleat of the frame.

[0055]Therefore, the IOL of the present invention presents a number of advantages. It is inserted in two separate pieces significantly reducing the bulk so that the incision can be as narrow as 1 mm. It is lightweight and thin which reduces corneal chafing and pupilary block. In addition, because of the hinges and toes and arcuate shape, it is capable of being inserted and resting o...

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Abstract

An intraocular lens device including a foldable lens optic configured to fit through a small incision in the eye connected to a lens frame haptic configured to fit separately through a small incision in the eye.

Description

FIELD OF THE INVENTION[0001]The present invention generally relates to a two part “L”-shaped IOL. More specifically, the present invention relates to an IOL film frame which is insertable through an opening as small as 1.0 mm without deforming the frame and a lens which can then be attached within the eye.BACKGROUND OF THE INVENTION[0002]The history of intraocular lenses (IOLs) is a long and varied one. Intraocular lenses can be used to treat a wide diversity of eye conditions ranging from cataracts to any type of eyesight correction. In addition, IOLs can be used to replace an irreversibly damaged lens in the eye—aphakic eyes. Alternatively, the lenses can be used in addition to the natural lens to correct the vision—phakic eyes. These lenses can be placed in the anterior or posterior chambers of the eye.[0003]Early IOL researchers were plagued with problems associated with the materials which were obtainable to them at the time (early 1950's) making the lenses too heavy and too la...

Claims

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Application Information

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IPC IPC(8): A61F2/16
CPCA61F2/1602A61F2250/0018A61F2/1648A61F2/16A61F2220/0033A61F2230/0043A61F2002/16902
Inventor BLAKE, LARRY W.
Owner BLAKE LARRY W
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