Hydrogel composition and hydrogel lens

A composition and hydrogel technology, applied in glasses/goggles, instruments, optics, etc., can solve the problems of retinal damage, lack of blocking blue light and high water-containing contact lenses, premature onset of cataract and macular degeneration, etc.

Active Publication Date: 2019-03-22
PEGAVISION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of using a tablet or mobile phone for a long time, the eyes may be exposed to blue light for a long time, causing damage to the retina, and may even cause premature cataracts and macular degeneration
[0004] However, there is still a lack of highly water-containing contact lenses that can block blue light to protect the eyes

Method used

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  • Hydrogel composition and hydrogel lens
  • Hydrogel composition and hydrogel lens
  • Hydrogel composition and hydrogel lens

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Embodiment Construction

[0051] Several embodiments of the present invention are disclosed below, and for the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, the chemical structural formulas shown herein will be drawn in a simple and schematic manner.

[0052] In this article, unless there is a special limitation on the articles in the context, one and the can generally refer to one or more. It will be further understood that, as used herein, include, include, have and similar words indicate the features, regions, integers, steps, operations, elements and / or components described therein, but do not exclude the described or additional One or more other features, regions, integers, steps, operations, elements, components, and / or groups thereo...

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Abstract

The invention discloses a hydrogel composition and a hydrogel lens. The hydrogel composition is used to prepare a hydrogel lens, and the hydrogel composition includes a hydrophilic monomer, a blue light blocking monomer, a crosslinking agent and an initiator. Among them, the hydrophilic monomer is 30 parts by weight to 99.68 parts by weight; the blue light blocking monomer is 0.02 parts by weight to 0.5 parts by weight, and it contains a yellow dye; the crosslinking agent is 0.1 parts by weight to 1 part by weight; the initiator 0.2 to 2 parts by weight. Thus, the hydrogel composition and the hydrogel lens of the present invention have the functions of high water content and blue light isolation.

Description

technical field [0001] The invention relates to a hydrogel composition, and in particular to a hydrogel composition and a hydrogel lens for blocking blue light. Background technique [0002] Because the contact lens made of hydrogel has good moisturizing function, even if it is worn for a long time, it can also make the cornea have enough water content, and it is not easy to cause eye discomfort due to corneal dryness. Therefore, hydrogels have become one of the preferred ingredients for contact lens lenses. [0003] In the past two decades, many electronic display devices, such as TV fluorescent screens, computer fluorescent screens, tablets, and mobile phones, have used light emitting diodes (light emitting diodes, LEDs) as light sources, and the blue light (wavelength 380nm to 500nm) emitted by LEDs is easily cause eye disease. In the case of using a tablet or mobile phone for a long time, the eyes may be exposed to blue light for a long time, causing damage to the reti...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08F220/28C08F220/06C08F220/40C08F220/34C08F220/60C08F226/06C08K5/23G02C7/04G02C7/10
CPCG02C7/04G02C7/104C08F220/28C08K5/23C08F220/281C08F220/06C08F220/40C08F220/282C08F220/603C08F220/34C08F226/06
Inventor蒋德如游晓婷张汉宜赖有进
OwnerPEGAVISION CORP