Sclera lens having open window and concave bag

A scleral lens and fenestration technology, applied in the field of ophthalmology optics, can solve the problems of eye danger and suction on the eyeball, etc.

Active Publication Date: 2021-04-16
FITLENS LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another problem with scleral lenses is adhesion of the lens to the cornea as mucin builds up and fills between the cornea and the scleral lens over time, and fluid is squeezed out bet

Method used

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  • Sclera lens having open window and concave bag
  • Sclera lens having open window and concave bag
  • Sclera lens having open window and concave bag

Examples

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Embodiment Construction

[0031] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that for simplicity and clarity of illustration, elements shown in the figures are not necessarily drawn to scale and that features shown in each embodiment may be combined with features shown in other embodiments. Reference numbers are repeated among the figures to indicate the same or analogous elements. It can be understood that the specific implementation manners described here are only used to explain relevant content, rather than to limit the present application.

[0032] The invention provides a scleral lens with a window and a pocket, the scleral lens does not touch the cornea, is not easy to adhere to the cornea, is not sucked to the cornea, has good oxygen permeability and water retention, and can be used in Delivers needed fluid from the outside of the lens to the eye during wear, especially for patients with...

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Abstract

The invention discloses a sclera lens with an open window and a concave bag. One open window or a plurality of annularly distributed open windows is/are arranged in an optical area of the sclera lens; two or more concave bags are arranged in the concave bag ring area on the rear surface of the optical area, and the concave bags are used for capturing bubbles near the window; wherein the open window is located radially outward of the concave bag annulus region and is not located in a transition region of the sclera lens, the transition region being configured to be located above an angular sclera edge of the eye when worn. The lens disclosed by the invention cannot be adsorbed to the cornea, can be comfortably worn within 12 hours and can maintain clear visual acuity.

Description

technical field [0001] The invention relates to the technical field of ophthalmic optics, in particular to a scleral lens with a window and a pocket. Background technique [0002] Contact lenses include corneal contact lenses and scleral lenses. Scleral lenses are large-diameter rigid lenses that cover the sclera and the corresponding conjunctiva, with diameters ranging from 14mm to 25mm, which can be further subdivided into mini-sclera lenses (lens diameters 14-18mm) and full-sclera lenses (lens diameters 18-18mm). 25mm). Scleral lenses generally consist of three regions: (1) the optic zone, which straddles the cornea but does not contact it, and is used to correct vision if needed; (2) the transition zone, which connects the optic (3) The landing zone / haptic zone is used to support the lens on the eyeball, and its curvature needs to be as consistent as possible with the sclera curvature. [0003] Scleral lenses have a space between the inner surface of the lens and the ...

Claims

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Application Information

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IPC IPC(8): G02C7/04
CPCG02C7/047G02C7/049G02C7/044A61F2/1451A61F2/15G02C7/04
Inventor 苏海·沙伊尔克莱斯·费鲍姆白玉婧
Owner FITLENS LTD
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