HYDROGEL WITH HIGH WATER CONTENT AND STABILITY
First Claim
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1. A composition comprising at least one polymer prepared from at least the following monomers:
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Abstract
A polymer comprising hydrophilic and hydrophobic properties is provided. The polymer can be formed into a hydrogel capable of being used as a contact lens. The lens can exhibit high water content such as for example more than 70 wt. % for biocompatibility and structural stability for handling. The hydrophilic portion can be 2,3-dihydroxypropyl methacrylate (GMA) and the hydrophobic portion can be 2-methoxyethyl methacrylate (MOEMA). Additionally, the lens can also include N,N-dimethylacrylamide (NN-DMA). Lens can be prepared and formed by molding including a cast molding process or a half cast molding process.
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46 Claims
- 1. A composition comprising at least one polymer prepared from at least the following monomers:
- 21. A composition adapted for high hydrogel water content consisting essentially of at least one polymer prepared from at least the following monomers:
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41. A hydrogel comprising a polymer with a backbone prepared from at least the following monomers and adapted for a high water content of at least 70% and a high relative water balance of at least 16:
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42. A method of making a contact lens, comprising:
(a) providing at least the following monomers;
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43. A method of improving vision in a patient, comprising:
(a) providing contact lens made of a hydrogel having at least the following monomers and adapted for a high water content of at least 70% and a high relative water balance of at least 16;
- 44. A contact lens comprising a hydrogel, the hydrogel comprising at least one crosslinked polymer, wherein the crosslinked polymer comprises polymerized GMA, at least one polymerized hydrophobic monomer, and comprises substantially no polymerized HEMA.
Specification