Unlock instant, AI-driven research and patent intelligence for your innovation.

Orthokeratology lens

An orthokeratology lens and cornea technology, applied in the directions of glasses/goggles, optical components, instruments, etc., can solve the problems of low efficiency of orthokeratology and slow corneal speed, and achieve the effect of high-efficiency orthokeratology

Pending Publication Date: 2022-05-27
上海艾康特医疗科技有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rate at which pressure is transmitted to the cornea may be slower for such larger diameter optic zones, which may result in inefficient shaping of the cornea

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Orthokeratology lens
  • Orthokeratology lens
  • Orthokeratology lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Hereinafter, the present disclosure will be further described in detail in conjunction with the drawings and specific implementation methods. In the drawings, the same components or components with the same functions are marked with the same symbols, and repeated description thereof will be omitted.

[0025] This embodiment relates to an orthokeratology lens, which is a corneal contact lens for reshaping the shape of the cornea for vision correction. With the orthokeratology lens according to this embodiment, it is possible to shape the cornea more efficiently.

[0026] figure 1 is a schematic diagram showing the application of the orthokeratology lens 1 according to the example of the present disclosure. figure 2 is a schematic perspective view showing the three-dimensional structure of the orthokeratology lens 1 related to the example of the present disclosure.

[0027] The orthokeratology lens 1 according to this embodiment can be applied to the surface of the ey...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Widthaaaaaaaaaa
Login to View More

Abstract

The orthokeratology lens is provided with an inner surface facing the cornea when the orthokeratology lens is worn and an outer surface opposite to the inner surface, and a base arc area, a reverse arc area and a fitting arc area are continuously formed on the inner surface from the center to the outside. On an XZ plane formed by taking the rise direction of the front surface of the cornea as the Z-axis direction, the width direction of the front surface of the cornea as the X-axis direction and the vertex of the front surface of the cornea as the original point, the base arc area meets the condition that e is set to enable the curvature radius of the reverse arc area to be smaller than that of the base arc area, and when the orthokeratology lens is worn, the radius of the reverse arc area is smaller than that of the base arc area. A tear space for containing tears is formed between the reverse arc area and the front surface of the cornea, the reverse arc area reshapes the middle peripheral tissue of the cornea so that peripheral incident light can be focused in front of the retina, and the matching arc area makes contact with the front surface of the eyeball for positioning. According to the cornea shaping device and the cornea shaping method, the cornea can be shaped more efficiently.

Description

technical field [0001] The present disclosure generally relates to ophthalmology medical devices, and specifically relates to an orthokeratology lens. Background technique [0002] Orthokeratology lenses (OK lenses) are rigid contact lenses that are designed through inverse geometry to allow the corneal epithelial cells to migrate when worn, thereby causing the corneal epithelial cells to redistribute to change the geometry of the anterior surface of the cornea to correct vision. [0003] At present, orthokeratology lenses are generally designed to include an optical zone from the center outward, a tear zone, and a peripheral zone. Positive pressure on the anterior surface of the cornea so that the corneal epithelial cells may migrate. [0004] In the above existing orthokeratology lenses, the optical zone is generally designed to have a relatively large diameter, for example 6 mm. However, for such larger diameter optic zones, the rate of pressure transmission to the cor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02C7/04
CPCG02C7/04
Inventor 刘熠蔡勇尚利如魏强崔秀国
Owner 上海艾康特医疗科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com