Ophthalmic lenses and compositions and methods for producing same
First Claim
Patent Images
1. A composition comprising:
- a first crosslinked polymer material, the first crosslinked polymer material swelled with water; and
a second polymeric material, other than the first crosslinked polymer material and polyacrylic acid, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second polymeric material being physically immobilized by the first crosslinked polymer material.
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Abstract
Ophthalmic lenses, such as corneal contact lenses, include a lens body made of a composition including a lens body made of a composition including a first crosslinked polymer material which is water swellable, and a second polymeric material, other than the first material, selected from water soluble polymeric materials, water swellable polymeric materials and mixtures thereof. The second material is physically immobilized by the first material. Such lenses provide increased water retention and/or increased water content and/or increased modulus and/or reduced friction which increases lens wearer comfort. Compositions and methods for providing such lenses and compositions are also provided.
45 Citations
19 Claims
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1. A composition comprising:
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a first crosslinked polymer material, the first crosslinked polymer material swelled with water; and
a second polymeric material, other than the first crosslinked polymer material and polyacrylic acid, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second polymeric material being physically immobilized by the first crosslinked polymer material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A composition comprising:
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a first crosslinked polymer material, the first crosslinked polymer material swelled with water; and
a second polymeric material, other than the first crosslinked polymer material, which is nonionic, cationic or a material having a substantially balanced cationic/anionic charge, and is selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second polymeric material being physically immobilized by the first crosslinked polymer material. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification