Extended wear ophthalmic lens
An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water permeability be...
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| creator | Nicolson, Paul Clement Baron, Richard Carlton Chabrecek, Peter Court, John Domschke, Angelika Griesser, Hans Jorge Ho, Arthur Hopken, Jens Laycock, Bronwyn Glenice Liu, Qin Lohmann, Dieter Meijs, Gordon Francis Papaspiliotopoulos, Eric Riffle, Judy Smith Schindhelm, Klaus Sweeney, Deborah Terry, Jr, Wilson Leonard Vogt, Jurgen Winterton, Lynn Cook |
| description | An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water permeability being sufficient to provide good on-eye movement, such that a good tear exchange occurs between the lens and the eye. A preferred lens is a copolymerization product of a oxyperm macromer and an ionoperm monomer. The invention encompasses extended wear contact lenses, which include a core having oxygen transmission and ion transmission pathways extending from the inner surface to the outer surface. |
| format | Patent |
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The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water permeability being sufficient to provide good on-eye movement, such that a good tear exchange occurs between the lens and the eye. A preferred lens is a copolymerization product of a oxyperm macromer and an ionoperm monomer. 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The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water permeability being sufficient to provide good on-eye movement, such that a good tear exchange occurs between the lens and the eye. A preferred lens is a copolymerization product of a oxyperm macromer and an ionoperm monomer. The invention encompasses extended wear contact lenses, which include a core having oxygen transmission and ion transmission pathways extending from the inner surface to the outer surface.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Extended wear ophthalmic lens |
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