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Scleral lenses with fenestration and pocket

A scleral lens and window opening technology, applied in the field of ophthalmology, can solve the problems of being sucked into the eyeball, eye danger, etc.

Active Publication Date: 2021-11-16
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 between the scleral lens and the cornea during blinking , if this part of the liquid is not replaced in time, the lens will be sucked onto the eyeball over time, which is dangerous for the eyes

Method used

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  • Scleral lenses with fenestration and pocket
  • Scleral lenses with fenestration and pocket
  • Scleral lenses with fenestration and pocket

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 scleral lens with a fenestration and a concave pocket. The optical zone of the scleral lens is provided with one fenestration or a plurality of circularly distributed fenestrations; the concave pocket ring on the rear surface of the optical zone Two or more pockets are set in the area, and the pockets are used to capture air bubbles near the window; wherein the window is located on the radially outer side of the ring area of ​​the pocket, and is not located in the transition area of ​​the scleral lens , the transition zone is configured to be positioned above the corneoscleral limbus of the eye when worn. The lenses of the present invention are not attracted to the cornea, can be worn comfortably and maintain clear visual acuity for up to 12 hours.

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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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/00
CPCG02C7/047G02C7/049A61F2/1451G02C7/044A61F2/15G02C7/04
Inventor 苏海·沙伊尔克莱斯·费鲍姆白玉婧
Owner FITLENS LTD
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