Contact lens, method for producing same, and pack for storage and maintenance of a contact lens
AssigneeSafilens S.R.L.
InventorAlessandro Filippo
Life of this patent
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Abstract
A contact lens (4) comprises a solid component capable of imparting shape and structure to said lens, and a liquid component, at least partially contained in the solid component, capable of favoring the compatibility between said lens and the eye of a user of said lens, wherein the liquid component comprises a solution capable of being used as a lachrymal substitute.
Claims21
A soft contact lens comprising a solid component capable of imparting shape and structure to said lens and a liquid component distributed substantially uniformly in said solid component, capable of favoring the compatibility between said lens and the eye of a user of said lens, wherein said liquid component comprises an aqueous solution used as a lachrymal substitute.
A method for producing a soft contact lens comprising the steps of:
- a. obtaining a dry semi-manufactured product of said lens, made of polymeric material, constituting a solid component of said lens,
- b. hydration of said dry semi-manufactured product in an aqueous solution to impart a liquid component distributed substantially uniformly in said solid component and thus obtain said contact lens,
- wherein said aqueous solution is used as a lachrymal substitute.
Dependencies are inferred from the claim text.