Novartis Ag

Jacalyn Mary Schremmer

Richard Charles Turek

Yongxing Qiu

Lynn Cook Winterton

Troy Vernon Holland

John Martin Lally

Paul Clement Nicolson

Aaldert Rens Molenberg

Richard Carlton Baron

Wilson Leonard Terry, Jr

Thomas Hirt

Celeste Aguado

The invention relates to ophthalmic molding formulations and to tinted, high Dk ophthalmic moldings. This invention also relates to a method for making a tinted ophthalmic molding, particularly edge-to-edge soft, tinted contact lenses having improved properties, are prepared with an improved efficiency.

Tinted, high DK ophthalmic molding and a method for making same

The invention relates to ophthalmic molding formulations and to tinted, high Dk ophthalmic moldings. This invention also relates to a method for making a tinted ophthalmic molding. The method comprises: (a) providing a polymer precursor having cross-linkable or polymerizable groups; (b) providing a pigment dispersion comprising an inorganic or organic pigment and a dispersing agent; (c) mixing the pigment dispersion with the polymer precursor to form a tinted prepolymer mixture; (d) dispensing the tinted prepolymer mixture into a mold; and (e) forming a tinted ophthalmic molding from the tinted prepolymer mixture, the molding comprising a polymer matrix having the pigment entrapped therein. With this method, tinted ophthalmic moldings, particularly edge-to-edge soft, tinted contact lenses having improved properties, are prepared with an improved efficiency.

Tinted, high Dk ophthalmic molding and a method for making same

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.

Polymeric materials for making contact lenses

Organic polymers

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Atlanta, GA, United States of America

Jacalyn Mary Schremmer