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Variable curvature accommodating intraocular lens with expandable peripheral reservoir

A lens, inner shell technology, applied in the direction of intraocular lens, prosthesis, eye implant, etc., can solve the problem of not being widely accepted

Active Publication Date: 2019-09-06
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multifocal IOLs e.g. relying on diffraction patterns about generally multiple foci have been proposed but have not been widely accepted so far

Method used

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  • Variable curvature accommodating intraocular lens with expandable peripheral reservoir
  • Variable curvature accommodating intraocular lens with expandable peripheral reservoir
  • Variable curvature accommodating intraocular lens with expandable peripheral reservoir

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] figure 1 It is a cross-sectional side view of an exemplary variable curvature type adjustable intraocular lens (IOL) 10 according to certain embodiments of the present disclosure. In some embodiments, the IOL 10 includes an outer shell element 14 and an inner shell element 16 nested within the outer shell 14. The outer shell 14 and the inner shell 16 may define a variable volume reservoir 20 that may be in fluid communication with the chamber 12 of the fluid optics 30 via one or more outlets 22 in the side wall 21. As a result, the fluid contained in the chamber 12 can pass to the reservoir 20 and vice versa. In the illustrated embodiment, the side wall 21 is a part of the inner shell 16 and the distal end of the inner shell and the outer shell are joined together by the lower edge 32 of the optical device 30, which sits on the inner surface of the distal end of the outer shell 14. 48, hermetically engages with it in a fluid-tight manner. However, the present disclosur...

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PUM

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Abstract

An intraocular lens (10) comprising: a deformable housing (14) having a distal end and a proximal end (40); a fluid optic (30) having at least one elastic membrane surface (24 ), the elastic membrane surface is positioned across the optical axis of the patient's eye and at least partially defines an inner chamber (12) to contain an optical fluid; and an inner housing (16) associated with the fluid optic, the The inner shell has a distal end and a proximal end (44). Each end is joined to a corresponding end of the outer housing to define a reservoir (20) between the inner housing and the outer housing, the reservoir being at least partially arranged around the circumference of the fluid optic and connected to the The inner chambers are in fluid communication. The deformable housing is configured to deform when the bladder is compressed axially in a manner that increases the volume of the reservoir and draws fluid from the chamber into the reservoir, thereby modifying the elastic membrane curvature.

Description

Technical field [0001] The present disclosure relates generally to the field of intraocular lenses (IOL) and more specifically to adjustable IOLs. Background technique [0002] In its simplest aspect, the human eye functions to provide vision by receiving light through a transparent outer part called the cornea and focusing the image on 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 and focus of the cornea and lens. [0003] When aging or disease causes the lens to become less transparent, the amount of light transmitted to the retina decreases and vision decreases. This defect of the lens of the eye is medically called a cataract. The accepted treatment for this situation is to remove the lens surgically and replace the lens function with an artificial intraocular lens (IOL). [0004] In the United States, most cataract lenses are removed by a surgical technique called phacoemuls...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/16
CPCA61F2250/0063A61F2/1635A61F2250/0018A61F2250/0003A61F2/1648
Inventor D·博尔贾L·吉拉尔迪K·M·卢埃林M·麦克内里B·威廉姆斯
Owner ALCON INC