Contact lens products

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G - Physics

02

B

G02B 1/04 (2006.01) A61L 12/08 (2006.01)

Patent

CA 2692778

The present invention relates to improved contact lens products which not only have initial insertion comfort but also are comfortable to wear for more than about 6 hours. The invention is achieved by packaging and storing a hydrogel lens with two or more leachable polymeric lubricants incorporated therein in a relatively viscous packaging solution including a relatively low molecular weight polyethylene glycol (PEG) and a viscosity-enhancing hydrophilic polymer. The present invention also provides methods for making contact lens products of the invention.

La présente invention se rapporte à des produits de lentilles de contact améliorés qui présentent non seulement un confort d'insertion initiale, mais sont également confortables à porter pendant plus d'environ 6 heures. L'invention est obtenue par conditionnement et stockage d'une lentille hydrogel avec deux lubrifiants polymères relargables, ou plus, incorporés dans celle-ci dans une solution de conditionnement relativement visqueuse comportant un polyéthylène glycol (PEG) de poids moléculaire relativement bas, et un polymère hydrophile améliorant la viscosité. La présente invention porte également sur des procédés de réalisation de produits de lentilles de contact de l'invention.

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