Sclera contact lens matching method

A contact lens and sclera technology, applied in glasses/goggles, optics, instruments, etc., can solve the problems of scleral lens thickness, conjunctival staining, uneven contact pressure of sclera, etc.

Active Publication Date: 2021-06-25
上海艾康特医疗科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, most of the existing scleral lenses have an arch-bridge landing on the sclera, which can easily lead to uneven contact between the scleral lens and the sclera, resulting in uneven contact pressure on the sclera, and the scleral lens itself is relatively thick, which can easily lead to conjunctival staining and other complications. Symptoms

Method used

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  • Sclera contact lens matching method
  • Sclera contact lens matching method
  • Sclera contact lens matching method

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Embodiment Construction

[0046] All references cited in this disclosure are incorporated by reference in their entirety as if fully set forth. Unless defined otherwise, technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0047] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. In the following description, the same reference numerals are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of dimensions between components, the shape of components, and the like may be different from the actual ones.

[0048] figure 1 is a diagram illustrating an application scene of the scleral lens 1 according to an example of the present disclosure. figure 2 yes figure 1 A partial schematic representation of the scleral landing zone is sho...

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Abstract

The invention provides a sclera contact lens matching method. A sclera contact lens comprises a convex outer surface and a concave inner surface, the inner surface is provided with a central area for correcting vision, a transition area arranged on the periphery of the central area and a landing area arranged on the periphery of the transition area, and the landing area is provided with a contact part used for making contact with a sclera. And the landing area comprises a limbal landing area not in contact with the cornea and a sclera landing area in contact with the sclera through the contact part, the lens matching method comprises the following steps: determining the diameter of the sclera contact lens; measuring the sagittal depth of the eyeball; obtaining the rise of the sclera contact lens based on the rise of the eyeball, wherein the rise of the contact part is linearly decreased from inside to outside; and preparing the sclera contact lens according to the rise of the sclera contact lens. According to the sclera contact lens matching method, the sclera contact lens can be well matched with the sclera, and the pressure borne by the sclera can be evenly dispersed.

Description

[0001] This application is filed on July 22, 2020 , the application number is 202010712536.1 , the name of the invention is sclera Mirrors and their dispensing methods divisional application of the patent application. technical field [0002] The disclosure relates to a method for dispensing scleral contact lenses. Background technique [0003] Contact lenses can correct the refractive error of the eyeball. The commonly used hard contact lenses are directly in contact with the cornea and worn on the cornea. However, since the cornea is rich in sensory nerve cells and is a relatively sensitive part of the human body, wearing a hard contact lens directly on the cornea can easily cause foreign body sensation or other symptoms of incompatibility, and these symptoms are very important for people with corneal diseases ( For example, patients with keratoconus, dry eye, etc. will be more serious. In addition, for patients with abnormal corneal refractive error, it is difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/04G02C7/02
CPCG02C7/046G02C7/027
Inventor 谭鈳达朱绿荷孙鹏飞
Owner 上海艾康特医疗科技有限公司
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