Accommodating lens with cavity
First Claim
1. A soft contact lens for correcting vision of an eye, comprising:
- a hydrogel contact lens body comprising water and a cross-linked polymer, wherein the contact lens body defines an internal cavity comprising a fluid and wherein the cross-linked polymer allows water to diffuse in and out of the contact lens body to the cavity from an external surface of the contact lens body, and wherein the cavity is shaped to correct vision when in equilibrium with tear fluid of the eye.
3 Assignments
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Accused Products
Abstract
A lens comprises an internal cavity structure formed by dissolution of a soluble insert material. The internal soluble material may dissolve through a body of a lens such as a contact lens in order to form the cavity within the contact lens. The cavity within the lens can be shaped in many ways, and corresponds to the shape of the dissolved material, such that many internal cavity shapes can be readily fabricated within the contact lens. The insert can be placed in a mold with a pre-polymer material, and the pre-polymer material cured with the insert placed in the mold to form the lens body. The polymerized polymer may comprise a low expansion polymer in order to inhibit expansion of the lens when hydrated. The polymer may comprise a hydrogel when hydrated. The soft contact lens material comprises a sufficient amount of cross-linking to provide structure to the lens and shape the cavity.
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Citations
41 Claims
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1. A soft contact lens for correcting vision of an eye, comprising:
a hydrogel contact lens body comprising water and a cross-linked polymer, wherein the contact lens body defines an internal cavity comprising a fluid and wherein the cross-linked polymer allows water to diffuse in and out of the contact lens body to the cavity from an external surface of the contact lens body, and wherein the cavity is shaped to correct vision when in equilibrium with tear fluid of the eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A soft contact lens for correcting vision of an eye, comprising:
a hydrogel contact lens body comprising water and a cross-linked polymer, wherein the contact lens body defines an internal cavity comprising a fluid and wherein the cross-linked polymer allows water to diffuse in and out of the contact lens body to the cavity from an external surface of the contact lens body, the contact lens body comprising an anterior surface and a posterior surface, the posterior surface and the anterior surface and the cavity shaped to correct vision with the cavity in equilibrium with tear fluid of the eye.
Specification