Ophthalmic lenses and compositions, and methods for producing same
First Claim
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1. An ophthalmic lens comprising:
- a lens body comprising a composition including a first crosslinked polymer material which is water swellable; and
a second polymeric material, other than the first material, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second material being physically immobilized by the first 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.
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Citations
15 Claims
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1. An ophthalmic lens comprising:
a lens body comprising a composition including a first crosslinked polymer material which is water swellable; and
a second polymeric material, other than the first material, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second material being physically immobilized by the first material.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for producing an ophthalmic lens comprising:
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providing a lens body comprising a lens composition including a first crosslinked polymer material which is water swellable;
introducing a monomeric component into the lens body; and
subjecting the monomeric component in the lens body to effective conditions to form a second polymeric material selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second material being physically immobilized by the first material. - View Dependent Claims (13, 14, 15)
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Specification