Daily disposable contact lens preserving liquid and preparation method thereof

Abstract

The invention discloses a daily disposable contact lens preserving liquid, which is characterized by comprising the following components according to the mass percentage: MPC polymer 0.1-8%, buffer 0.3-5%, isotonic regulator 0.03-1.5%, moisturizing lubricant 0.01-0.5%, purified water 85-99.56%. With the above settings, the daily disposable contact lens preserving liquid has good lubricity and fluidity and can avoid self-adhesion of the contact lens and adhesion between the contact lens and the polypropylene box body, at that same time the daily disposable contact lens preserving liquid has good biocompatibility and high comfort when worn. The invention also discloses a preparation method of the daily disposable contact lens preserving liquid.

Description

technical field [0001] The invention relates to the field of contact lens care, in particular to a preservation solution for daily disposable contact lenses and a preparation method thereof. Background technique [0002] Contact lens manufacturers usually soak contact lens lenses in a buffer solution, and package and store them with a combination of glass bottles and rubber stoppers, aluminum-plastic composite caps, or a combination of transparent polypropylene packaging boxes and medical packaging aluminum foil paper. Among them, the buffer solution is generally physiological saline, phosphate buffer solution, etc. as the main components. Some companies’ contact lens products add functional components to the buffer solution, such as surfactants to reduce the self-adhesive ability of contact lens lenses, poloxamer, glycerol, polyvinylpyrrolidone, etc. to improve the lubricating and moisturizing properties. [0003] None of these ingredients can solve a major problem that pl...

AI Technical Summary

Problems solved by technology

[0003] None of these ingredients can solve a major problem that plagues contact lens manufacturers and wearers—contact lens lenses packaged in polypropylene packaging boxes will stick to polypropylene packaging boxes to varying degrees after sterilization

If this kind of adhesion is not separated automatically, there will be a high probability of causing damage to the lens of the contact lens, causing the wearer to wear it uncomfortable

Some manufacturers solve the problem of adhesion between contact lens lenses and polypropylene packaging boxes after sterilization is to screen before leaving the factory, and destroy the lenses that are found to be unqualified. This method greatly increases production. vendor cost

A small part of the contact lenses shipped directly without screening will cause adhesion, and a small part of them will cause varying degrees of lens surface damage, resulting in discomfort for some wearers after wearing, or shortening the service life of contact lenses

[0004] One of the main ideas of daily disposable contact lenses is to open the package and wear them directly to reduce the difficulty of care for the wearer. However, the preservation solutions of existing contact lens products on the market have varying degrees of defects, and cannot take into account moisture retention, lubricity, and non-irritation. Sexuality, non-adhesion and other functions

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