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Water gel composition and water gel lens

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

Active Publication Date: 2017-06-09
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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  • Water gel composition and water gel lens
  • Water gel composition and water gel lens
  • Water gel composition and water gel lens

Examples

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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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PUM

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Abstract

The invention discloses a water gel composition and water gel lens. The water gel composition is used for preparation of the water gel lens. The water gel composition comprises the following components in parts by weight: 30 to 99.68 parts by weight of a hydrophilic monomer, 0.02 to 0.5 part by weight of a barrier blue-light monomer containing a yellow dye, 0.1 to 1 part by weight of a crosslinking agent and 0.2 to 2 parts by weight of an initiator. Thus, the water gel composition and the water gel lens provided by the invention have high water content and blue-light isolation function.

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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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
Owner PEGAVISION CORP
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