Ophthalmic lenses and compositions and methods for producing same
First Claim
Patent Images
1. A contact lens comprising:
- a 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.
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Citations
29 Claims
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1. A contact lens comprising:
a 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. An contact lens comprising:
a lens body comprising a composition including a crosslinked polymer material which is water swellable; and
a polymeric material, other than the crosslinked polymer material, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the lens body exhibiting increased retention of water relative to a substantially identical lens body without the polymeric material.- View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
Specification