Contact lenses with a lubricious coating thereon

US10962803B2 · kind B2 · utility

Assignee

• ALCON INC. · CH

Inventors

• Steve Yun Zhang · Sugar Hill, US
• Daqing Wu · Suwanee, US
• Richard Charles Breitkopf · Dunwoody, US
• Weihong Lang · Suwanee, US
• Junhao Ge · Johns Creek, US
• Maria F. Gubitosi Raspino · Lilburn, US
• Frank Chang · Cumming, US
• Thomas M. Moy · Hilliard, US
• Troy Vernon Holland · Suwanee, US

Key dates

• Filing date: Jan 29, 2019
• Grant date: Mar 30, 2021
• Expiry date: Jul 25, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/04
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention is generally related to a soft contact lens which comprises a hydrogel lens body and a coating of a hydrophilic copolymer thereon and to a method for producing the same. The hydrogel lens body comprises or is made of a polymeric material having 1,2- and/or 1,3-diol moieties, and the hydrophilic copolymer comprises arylborono-containing repeating units each having a boronic acid group. The coating is covalently-attached to the hydrogel lens body through cyclic boronic ester linkages each formed between one boronic acid group and one 1,2-diol or 1,3-diol group. The soft contact lens has a surface lubricity higher than the surface lubricity of the lens body.