Brightly colorful contact lens and preparation method thereof

A contact lens, color technology, applied in glasses/goggles, other home appliances, optics, etc., can solve the problems of low biocompatibility of contact lenses, foreign body sensation in patients wearing, poor comfort, etc., and achieve biocompatibility Excellent performance, mature program, good water absorption effect

Inactive Publication Date: 2011-09-21
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dazzling colored contact lens, which solves the problems of low biocompatibility and poor comfort of the contact lens caused by the injection of colored pigments in the prior art, and makes the patient have a serious foreign body sensation when wearing it.

Method used

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  • Brightly colorful contact lens and preparation method thereof
  • Brightly colorful contact lens and preparation method thereof
  • Brightly colorful contact lens and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The preparation of embodiment 1 sandwich structure purple contact lens (SiO 2 template)

[0046] 1. Preparation of monodisperse silica colloidal particles

[0047] with intermittent feeding Method, add 88ml of absolute ethanol and 3.2ml of tetraethyl orthosilicate mixture and 20mL of ammonia water and 88ml of absolute ethanol mixture into the flask, stir at a speed of 350r / min; add 16ml of ammonia water; after 5-10 minutes Add 176ml of absolute ethanol and 4ml of ethyl orthosilicate mixture. After 2 hours, monodisperse silica particles were formed, and the particle size could be effectively controlled by changing the proportion of tetraethyl orthosilicate in the reaction system. After repeated ultrasonication and centrifugal washing to take out the reaction residual liquid, it was dispersed in deionized water, concentrated, and set aside.

[0048] The reaction temperature is controlled at 25 degrees, and the particle size can be controlled by changing the proportio...

Embodiment 2

[0058] The preparation of embodiment 2 sandwich structure red contact lenses (SiO 2 template)

[0059] The steps are as shown in Example 1, except that in step 2, 12 μl of AAm and Bis (29:1 in molar ratio) with a mass fraction of 60%, and 81 μl of silicon dioxide (180 nm in particle size) aqueous solution, 7 μl of PEGDA, 1 μl photoinitiator AIBN. Other treatment methods and conditions are similar to those in Example 1, and a red hydrogel film can be prepared, with a reflection peak of 650-700nm.

Embodiment 3

[0060] The preparation of embodiment 3 sandwich structure green contact lenses (SiO 2 template)

[0061] The steps are as shown in Example 1, except that the difference is that 18 μl of AAm and Bis (29:1 molar ratio) with a mass fraction of 60% is used, and 70 μl of silicon dioxide (particle diameter is 180 nm) aqueous solution, 11 μl of PEGDA, and 1 μl of photoinitiator AIBN. Other treatment methods and conditions are similar to those in Example 1, and a green hydrogel film can be prepared with a reflection peak of 580-620nm.

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Abstract

The invention discloses a brightly colorful contact lens which is characterized by being prepared by using a method comprising the following steps of: (1) preparing structural color hydrogel with an inverse opal photon crystal structure by using a sequenced colloid nano particle photon crystal structure as a template through a colloid crystal template method; (2) paving the structural color hydrogel with the inverse opal photon crystal structure in a PV (polyvinyl) mould of the contact lens; adding the contact lens standard hot-solid liquid to completely permeate into the network structure ofthe hydrogel; processing the thermal solidification sequence to form the initial film of the contact lens; immersing the initial film of the contact lens in a standard saline water solution to process hydration treatment until swelling is in equilibrium. Compared with other colored contact lenses, the brightly colorful contact lens is beautiful in appearance, good in biological compatibility and good in practicability.

Description

technical field [0001] The invention belongs to the technical field of contact lens material research, and in particular relates to a colorful contact lens and a preparation method thereof. Background technique [0002] In the past 30 years, the total number of people wearing contact lenses in the world has increased by 35 times, and colored contact lenses have gradually become popular due to the drive of the global fashion industry. According to incomplete statistics, my country's colored contact lenses currently account for more than 35% of the contact lens market. [0003] Colored contact lenses can not only correct vision, but also beautify the iris with its rich colors and patterns. Since its inception, it has received high attention and market popularity. The concept of colored contact lenses was proposed very early and was soon commercialized, from the direct printing of patterns on the iris area on the surface of the lens (US Pat. ), people seek various methods to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/04B29D11/00C08F220/28C08F222/14C08J3/075
CPCG02C7/04G02C7/046G02C7/104
Inventor 顾忠泽金露赵远锦谢卓颖叶宝芬
Owner SOUTHEAST UNIV
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