Ophthalmic lenses and compositions and methods for producing same
First Claim
Patent Images
1. An ophthalmic lens comprising:
- an ophthalmic lens body comprising a composition including a silicon-containing crosslinked polymer material which is water swellable; and
a polymeric material, other than the silicon-containing crosslinked polymer material, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the polymeric material being distributed in the silicon-containing 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.
27 Citations
20 Claims
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1. An ophthalmic lens comprising:
an ophthalmic lens body comprising a composition including a silicon-containing crosslinked polymer material which is water swellable; and
a polymeric material, other than the silicon-containing crosslinked polymer material, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the polymeric material being distributed in the silicon-containing crosslinked polymer material.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for producing an ophthalmic lens comprising:
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providing a lens body comprising a lens composition including a silicon-containing 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 polymeric material selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the polymeric material being distributed in the silicon-containing crosslinked polymer material. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification