Light-driven oxygen production type corneal contact lens, preparation method and application thereof

Abstract

The invention discloses a light-driven oxygen production type corneal contact lens, a preparation method and application thereof, and belongs to the technical field of corneal contact lenses. The light-driven oxygen production type corneal contact lens is composed of a flexible heterojunction photocatalytic electrode and a silicon-based hydrogel matrix. The preparation method includes: firstly, sputtering a p-type semiconductor and an n-type semiconductor to two faces of a flexible center interlayer through a magnetron sputtering method to prepare the flexible heterojunction photocatalytic electrode, then coating the flexible heterojunction photocatalytic electrode with a passivation layer and performing packaging into the silicon-based hydrogel matrix, and conducting machining and formingto obtain the light-driven oxygen generation type corneal contact lens. According to the invention, the oxygen supply mode that the traditional corneal contact lens carries oxygen with water or allows oxygen to permeate through a channel is changed into a self-oxygen-production oxygen supply mode, so that the wearing comfort and durability of the corneal contact lens are improved. The light-driven oxygen generation type corneal contact lens can absorb harmful light (ultraviolet light) or strong light (blue light and laser) to protect eyes; and the generated high active oxygen, hydrogen and the like have prevention and treatment effects on ophthalmic diseases (keratitis, conjunctivitis and glaucoma) caused by bacteria and viruses.

Description

technical field

[0001] The invention relates to a light-driven oxygen-generating corneal contact lens, and a preparation method and application of the light-driven oxygen-generating corneal contact lens. More specifically, it relates to a corneal contact lens and a preparation method thereof, as well as its application in optical protection, vision correction, vision rehabilitation and treatment of ophthalmic diseases. The invention belongs to the technical field of corneal contact lenses. Background technique

[0002] Eyes are the window to the soul, and vision needs careful care. In 2018, the Basic Education Quality Monitoring Center of the Ministry of Education released the "China Compulsory Education Quality Monitoring Report". The report pointed out that the number of myopia in China has reached 600 million, and the myopia rate of young people has ranked first in the world. The myopia rate of Chinese junior high school students and college students has exceeded 70%, w...

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