Alcon, Inc.

Novartis Ag

Jang-Shing Chiou

Steve Yun Zhang

Daqing Wu

Howard Allen Ketelson

Yuan Chang

Feng Jing

David L Meadows

Junhao Ge

Jing Cheng

Stephen Raymond Perreault

Ying Zheng

Karen Belinda Sentell

Jinbo Dou

Li Yao

Ye Hong

James W Davis

The present invention relates to a method to load a water insoluble phospholipid as nanoparticles to load into a hydrogel contact lens in autoclaving process during the hydrogel contact lens manufacturing process without an extra manufacturing step and without swelling the hydrogel contact lens with an organic solvent. The phospholipid nanoparticles loaded in hydrogel contact lens subsequently releases to the eye upon wearing.

Contact lens packaging solutions

The invention relates to an ophthalmic product which comprises a sealed and autoclave-sterilized lens package including (1) a post-autoclave packaging solution containing a polymeric surfactant having an HLB value of from about 11 to about 16 and a Mn of from about 800 to about 20,000 Daltons and (2) a readily-usable silicone hydrogel (SiHy) contact lens immersed in the packaging solution. The readily-usable SiHy contact lens comprises the polymeric surfactant thereon providing an excellent wettability to the readily-usable SiHy contact lens directly out of the lens package, and also the leachable polymeric surfactant which is physically distributed in the polymer matrix of the SiHy contact lens and can be released to the eye of a patient for at least 7 days of daily wear and to replenish the lens surface-bound polymeric surfactant to provide sustainable wettabilities to the contact lens and the eye.

Wettable silicone hydrogel contact lenses

Growing community of inventors

Suwanee, GA, United States of America

Jang-Shing Chiou