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Gel type hard contact lens lubricating liquid

A technology of lubricating fluid and contact lens, which can be used in medical preparations with non-active ingredients, sensory diseases, and pharmaceutical formulations, etc., and can solve the problems of unstable tear film ocular surface, increased prevalence of dry eye, and eye discomfort. , to relieve dry eyes, improve hydrophobicity, and eliminate stickiness

Active Publication Date: 2020-04-21
AUTEK CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Under normal circumstances, the tear film only needs to moisten the cornea and conjunctiva. After wearing a contact lens, the tear film also needs to moisten both sides of the contact lens lens, which makes the tear film thinner than normal and accelerates the evaporation of water. This is easy to cause dry eyes, and with the popularization of electronic products, the prevalence of dry eyes continues to increase; therefore, the abnormal quantity or quality of tears will cause tear film instability and ocular surface damage, resulting in eye discomfort

Method used

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  • Gel type hard contact lens lubricating liquid
  • Gel type hard contact lens lubricating liquid
  • Gel type hard contact lens lubricating liquid

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preparation example Construction

[0027] The preparation process of above-mentioned lubricating liquid is as follows:

[0028] (1) Weigh the gel component and moisturizer, disperse them in the heated water for injection and stir, pre-dissolve for 40-60 minutes, stop stirring, after limited swelling for 1-2 hours, perform intermittent stirring, and cool to room temperature ;

[0029] (2) Weigh the pH adjuster, add it into the cooled mixed solution, and continue stirring until the pH value is adjusted to 5.0-8.0;

[0030] (3) Weigh the oil component, add it in the mixed solution after pH adjustment, stir and dissolve, weigh the disinfectant after completion, add it in the mixed solution after dissolving, stir and dissolve;

[0031] (4) Finally, weigh the osmotic pressure regulator, stir and dissolve until the osmotic pressure range is 240-290mOsm / kgH 2 O, in a sterile environment, the lubricating liquid can be obtained by filtering and sterilizing, and subpackaging and storing.

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Abstract

The invention discloses a gel type hard contact lens lubricating liquid which comprises, by weight, the following components: 0.05 to 0.2 part of a gel component; 3.0-20 parts of a humectant, 1.0-5.0parts of a grease component, 0.1-10 parts of an osmotic pressure regulator, 0.05-1.0 part of a disinfectant and 0.2-10 parts of a pH regulator; the pH value of the gel type hard contact lens lubricating liquid is 5.0-8.0, and the osmotic pressure of the gel type hard contact lens lubricating liquid is 240-290 mosm / kg*H2O.The gel type hard contact lens lubricating liquid prepared by the invention can improve the surface hydrophobicity caused by a hard contact lens material, improve the comfort of wearing glasses at night, and can also be used as physiological tear to relieve the dry eye symptomand improve the foreign body sensation of wearing glasses.

Description

technical field [0001] The invention belongs to the technical field of glasses care, and in particular relates to a gel-type rigid contact lens lubricant. Background technique [0002] The common contact lenses currently on the market are mainly used to correct vision, protect the eyeball or increase the beauty of the eyes. It is characterized by direct contact with the cornea. According to its material properties, it can be divided into hydrophilic contact lenses and non-hydrophilic contact lenses, For soft contact lenses and hard contact lenses. [0003] Rigid contact lenses are mostly fluorinated silicone acrylate and silicone acrylate rigid contact lenses, which are made of hard hydrophobic materials and have good oxygen permeability. After the hard lens is worn on the cornea, it can be well To maintain the inherent shape, there is a layer of "tear lens" between the lens and the cornea. When worn at night, through physical effects such as mechanical compression, lens mo...

Claims

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Application Information

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IPC IPC(8): A61K9/08A61K47/14A61K47/10A61K31/78A61P27/02
CPCA61K9/08A61K9/0048A61K47/14A61K47/10A61K31/78A61P27/02
Inventor 于振海王丹丹赵新山李荣荣
Owner AUTEK CHINA
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