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Corneal shaping device for correcting myopia

A technology for correcting myopia and cornea, which is applied in the field of correcting myopia and can solve problems such as diopter changes

Pending Publication Date: 2022-02-18
BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, current applications of corneal cross-linking for the correction of myopia are either only possible in patients with abnormally structured corneas (keratoconus) or have very limited changes in diopter

Method used

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  • Corneal shaping device for correcting myopia
  • Corneal shaping device for correcting myopia
  • Corneal shaping device for correcting myopia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] The patient takes a sitting or supine position, preferably a supine position. After routine disinfection and topical anesthesia, fix the fixed part in front of the patient's eyes, drip a cross-linking agent on the corneal surface, and wait for a period of time to allow the cross-linking agent to fully penetrate into the corneal stroma.

[0055] Bring the shaping portion into contact with the patient's cornea. Pressurize the shaping part, or perform air suction on the cavity between the shaping part and the cornea, so that the bottom surface of the shaping part is in close contact with the cornea, and the shape of the cornea is changed until the desired shape.

[0056] Turn on the ultraviolet light to irradiate the cornea according to the predetermined procedure, so that the cornea will undergo cross-linking reaction. During the reaction, the vicinity of the cornea may be in a high oxygen environment, or oxygen may be delivered to and near the corneal surface through a ...

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Abstract

The invention discloses a corneal shaping device for correcting myopia, the device comprises a fixing part and a shaping part, the fixing part is permeable to oxygen and a cross-linking agent, the shaping part comprises a material permeable to ultraviolet light, and the bottom of the shaping part forms a curved surface complementary to the desired shape of the cornea. The invention also discloses the use of the corneal shaping device for correcting myopia, wherein an ultraviolet irradiation device is used for irradiating the cornea through the shaping part.

Description

technical field [0001] The invention relates to a device for correcting myopia, and more particularly relates to an orthokeratology device. The present invention also relates to the use of the orthokeratology device for correcting myopia. Background technique [0002] my country is a country with a high incidence of myopia. The total number of myopia patients has exceeded 400 million. The prevalence of myopia among people over 5 years old is as high as 40%, which is much higher than the prevalence in European and American countries and regions during the same period, showing a younger age of onset. The trends of globalization, high degrees and fast progress. The myopia prevalence rate (myopia rate) of Chinese students has been high, ranking second in the world, and the prevalence rate of high myopia among college students in my country is even as high as 90%. [0003] At present, there is a huge demand for myopia correction in my country. In addition to wearing glasses for ...

Claims

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Application Information

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IPC IPC(8): A61F9/013A61F9/00
CPCA61F9/013A61F9/0017A61F2009/0052
Inventor 齐越肖真赵睿琪刘武王宁利
Owner BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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