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1. 发明公开

EP4431581A1 CONTACT LENS AND FABRICATION METHOD THEREFOR 审中-实审
公开(公告)号：EP4431581A1
公开(公告)日：2024-09-18
申请号：EP21949520.7
申请日：2021-11-12
申请人： Pegavision Corporation
发明人： LI, Ting-Yu , CHANG, Han-Yi
IPC分类号： C09K3/00
CPC分类号： C09K3/00
摘要： A contact lens and its manufacturing method are provided. The contact lens includes a lens and a hydrophilic coating that is attached to a surface of the lens by hydrogen bonding, ionic bonding, or a combination thereof. The hydrophilic coating includes polyacrylic acid and carbohydrate. Another contact lens includes a lens, a first hydrophilic coating, and a second hydrophilic coating. The first hydrophilic coating is attached to a surface of the lens by hydrogen bonding, ionic bonding, or a combination thereof and includes polyacrylic acid. The second hydrophilic coating is disposed on the first hydrophilic coating. The second hydrophilic coating includes polyvinylpyrrolidone, poloxamine, poloxamer, methylcellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, ascorbic acid, poly(2-methacryloyloxyethyl phosphorylcholine), hyaluronic acid, alginic acid, polyglutamic acid, carbohydrate, or combinations thereof. The carbohydrate includes monosaccharide, disaccharide, or a combination thereof. The contact lenses have high hydrophilicity and high stability, and the hydrophilic coatings have good adhesion.

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