Compositions and methods for storing contact lenses

Details Compositions and methods for storing contact lenses Compositions and methods for storing contact lenses

A - Human Necessities

61

L

A61L 2/06 (2006.01) A61L 12/08 (2006.01)

Patent

CA 2276454

Compositions for storing contact lenses include a liquid medium containing a polyanionic component, preferably a water soluble polyanionic component, in an amount effective to provide a hydration layer on the surface of said contact lens. The composition has a viscosity of less than 50 cps at 25 ~C, an osmolality of at least about 200 mOsm/kg, and preferably a pH in the range of about 6 to about 9.

L'invention concerne des compositions de conservation de verres de contact comprenant un milieu liquide qui contient un composant polyanionique, de préférence un composant polyanionique hydrosoluble, dans des quantités efficaces pour former une couche hydratante à la surface des verres de contact. La composition a une viscosité inférieure à 50 cps à 25 ·C, une osmolalité égale ou supérieure à 200 mOsm/kg et un pH compris, de préférence, entre six et neuf.

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