Corneal inlay with nutrient transport structures

一种营养物输送、嵌入物的技术，应用在改善患者视力,角膜嵌入物领域，能够解决调节能力减弱、无法看清近物等问题

Inactive Publication Date: 2012-05-23
ACUFOCUS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most individuals, accommodation declines with age, such that these individuals cannot see close objects clearly without vision correction

Method used

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  • Corneal inlay with nutrient transport structures
  • Corneal inlay with nutrient transport structures
  • Corneal inlay with nutrient transport structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] The present application relates to corneal inlays (eg, masks) for enhancing the depth of focus of a patient's eye, and methods and apparatus for making such corneal inlays. The masks typically employ pinhole vision correction and, in some embodiments, have nutrient delivery structures. The mask may be applied to the eye in any manner and at any location within the eye, for example as an implant in the cornea (sometimes referred to as a "corneal inlay"). The mask may also be included in or combined with a lens and applied to other areas of the eye, for example as or in combination with a contact or intraocular lens. In some applications, discussed further below, the mask is made of a stable material (eg, a permanently implantable material). Corneal inlays with openings can also be used to treat aniridia.

[0083] I. Overview of Depth of Focus Vision Correction

[0084] As discussed above, a mask with a pinhole opening can be used to increase the depth of focus of th...

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PUM

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Abstract

Corneal inlays and masks and methods of improving vision of a patient with corneal inlays and masks are provided. Masks with an aperture can improve the vision of a patient, such as by increasing the depth of focus of an eye of a patient. For example, a mask can have an annular portion with a relatively low visible light transmission surrounding a relatively high transmission central portion, such as a clear lens or aperture. This provides an annular mask with a small aperture for light to pass through to the retina to increase depth of focus. The mask may also include nutrient transport structures that provide nutrient flow through mask to prevent nutrient depletion. These nutrient transport structures can be configured to concentrate nutrient transmission near a center region of the mask to provide more nutrient flow near the center region.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Serial No. 61 / 233,802, filed August 13, 2009, the entire contents of which are incorporated herein by reference. Background technique [0003] field [0004] This application relates generally to the field of corneal implants. For example, the present application relates to corneal inlays having apertures to increase depth of focus (eg, "masked" corneal inlays), and to methods of making the same. [0005] Related technical description [0006] The function of the human eye is to provide vision by focusing light through an outer transparent part called the "cornea" and then through the lens to precisely focus the image onto the retina. 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. [0007] The visual ability of the eye is determined by the optical focusing ability of the cornea and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/14
CPCA61F2/142A61F2/1451A61F2250/0024A61F2/15A61F2/14A61F2/02G02C7/165G02C7/046
Inventor 布鲁斯·克里斯蒂爱德华·W·彼得森科里纳·万德波尔
Owner ACUFOCUS INC
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