Extended wear ophthalmic lens

Nicolson, P., Baron, R., Chabrecek, P., Court, J., Domschke, A., Griesser, H., Ho, A., Hoepken, J., Laycock, B., Liu, Q., Lohmann, D., Meijs, G., Papaspiliotopoulos, E., Riffle, J., Schindhelm, K., Sweeney, D., Terry, W., Vogt, J. and Winterton, L. (1998). Extended wear ophthalmic lens. US5760100 A.

Creator Nicolson, P.
Baron, R.
Chabrecek, P.
Court, J.
Domschke, A.
Griesser, H.
Ho, A.
Hoepken, J.
Laycock, B.
Liu, Q.
Lohmann, D.
Meijs, G.
Papaspiliotopoulos, E.
Riffle, J.
Schindhelm, K.
Sweeney, D.
Terry, W.
Vogt, J.
Winterton, L.
Patent title Extended wear ophthalmic lens
Date of issue 1998
Patent number US5760100 A
Country of origin United States
Abstract/Summary An ophthalmic lens suited for extended-wear for 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.

Document type: Patent
Collection: School of Chemical Engineering Publications
 
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Created: Thu, 14 Apr 2016, 12:30:32 EST by Vicki Thompson on behalf of School of Chemical Engineering