Silicone hydrogel contact lens
First Claim
1. A silicone hydrogel contact lens comprising an ophthalmically compatible, cast molded lens body having an oxygen permeability of greater than 110 barrers, an equilibrium water content of at least 40% by weight, and a modulus in a range of 0.5 MPa to 1.0 MPa, whereinthe lens body comprises a polymerized reaction product of a precursor composition comprising at least one siloxane-containing monomer or macromer, a hydrophilic monomer, a hydrophobic monomer, and a crosslinkable monomer,the siloxane-containing monomer or macromer contains a polysiloxane-dimethacrylate represented by formula (I)
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Accused Products
Abstract
Ophthalmically compatible contact lenses include lens bodies configured for placement on a cornea of an animal or human eye. The lens bodies are made of a hydrophilic silicon-containing polymeric material. The lens bodies have oxygen permeabilities, water content, surface wettabilities, flexibilities, and/or designs to be worn by a lens wearer even during sleep. The present lenses can be worn on a daily basis, including overnight, or can be worn for several days, such as about thirty days, without requiring removal or cleaning.
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Citations
22 Claims
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1. A silicone hydrogel contact lens comprising an ophthalmically compatible, cast molded lens body having an oxygen permeability of greater than 110 barrers, an equilibrium water content of at least 40% by weight, and a modulus in a range of 0.5 MPa to 1.0 MPa, wherein
the lens body comprises a polymerized reaction product of a precursor composition comprising at least one siloxane-containing monomer or macromer, a hydrophilic monomer, a hydrophobic monomer, and a crosslinkable monomer, the siloxane-containing monomer or macromer contains a polysiloxane-dimethacrylate represented by formula (I)
Specification