Accommodating intraocular lens

An intraocular lens and eye technology, applied in the field of human eyes, can solve the problem of wearing glasses or contact lenses

Inactive Publication Date: 2011-09-14
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But traditional IOLs mean patients must wear glasses or contacts to read, use a computer, or see objects at unselected distances

Method used

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Examples

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Embodiment Construction

[0020] Preferred embodiments of the invention are illustrated in the drawings, wherein like numerals are used to refer to like and corresponding parts of the various drawings.

[0021] Embodiments of the present invention provide improved designs for ocular implants. Such eye implants include an accommodating intraocular lens (IOL) and a plurality of haptics. An accommodating IOL consists of a fluid suspended between two optically transparent plates or membranes, where the IOL transmits light energy. The haptics are mechanically coupled to the IOL to position and secure the IOL in the eye. An IOL achieves accommodation by changing the surface curvature of an appropriate amount (eg, a drop) of liquid using the ciliary muscle of the eye. The liquid has high surface tension and is surrounded by an aerobic liquid. Pressure from the ciliary muscle causes liquid to be added from the reservoir or withdrawn from the droplet. Increasing / decreasing the size of the liquid drop change...

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PUM

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Abstract

An improved multifocal design for an ocular implant is provided This ocular implant can include an accommodating intraocular lens (IOL) and a number of haptics The accommodating IOL includes a liquid suspended between two optically transparent plates or membranes to form a pressure lens that passes optical energy The haptics mechanically couple to the IOL in order to position and secure the IOL within the eye The IOL achieves accommodation by using the eye's ciliary muscles to vary the surface curvature of the liquid The liquid may have a high surface tension and be surrounded by phobic liquid Pressure from the ciliary muscles causes fluid to be added from or withdrawn to a reservoir Increasing / decreasing the internal pressure of the liquid changes the angle (curvature) of the surface thus changing the optical properties of the lens When the pressure is released the liquid returns to the reservoir.

Description

technical field [0001] The present invention relates generally to the human eye, and more particularly to intraocular lenses (IOLs). Background technique [0002] In the simplest terms, the function of the human eye is to provide vision by transmitting light through a clear exterior called the cornea and focusing the image onto the retina through the lens. The quality of the focused image depends on many factors, including the size and shape of the eye and the transparency of the cornea and lens. Age and / or disease often make the lens less transparent. As a result, vision is impaired because less light can be transmitted to the retina. This defect in the lens of the eye is medically known as a cataract. [0003] One accepted treatment for this condition is surgical removal of the lens and replacement of the lens' function with an intraocular lens (IOL). An IOL is an artificial lens that replaces the natural lens of the eye that is removed during cataract surgery. For ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16
CPCA61F2/1635A61F2002/1681A61F2/14A61F9/007A61F9/013
Inventor D·温斯里奇
Owner ALCON INC
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