Johnson and Johnson Vision Care, Inc.

Jeffrey D Caltrider

Donnie Jerome Duis

Leilani Keahi Sonoda

Brian Aitken

Robert MacDonald Smith

Ture Kindt-Larsen

John B Enns

Olin W Calvin

Terry L Spaulding

Jeffrey Steven

Joseph W Ricard

Jeffrey E Steven

Provided is a method for manufacturing photoabsorbing contact lenses and photoabsorbing contact lenses produced thereby. The method comprises: (a) providing a mold assembly comprised of a base curve and a front curve, the base curve and the front curve defining and enclosing a cavity therebetween, the cavity containing a reactive mixture, wherein the reactive mixture comprises at least one polymerizable monomer, a photoinitiator which absorbs at an activating wavelength, and a photoabsorbing compound which displays absorption at the activating wavelength; and (b) curing the reactive mixture to form the photoabsorbing contact lens by exposing the reactive mixture to radiation that includes the activating wavelength, wherein the radiation is directed at both the base curve and the front curve of the mold assembly, and wherein the radiation's radiant energy at the base curve is greater than the radiation's radiant energy at the front curve.

Methods for the manufacture of photoabsorbing contact lenses and photoabsorbing contact lenses produced thereby

This invention provides a method of manufacturing a contact lens comprising the step of: dosing a contact lens mold comprising optical mold surfaces with an oxygen-sensitive reaction mixture, wherein said optical surfaces of said contact lens mold have between from 0.13&times;10 to 2.6&times;10 moles/cm O available to interfere with the reaction of said reaction mixture. This invention further provides a method of manufacturing a contact lens comprising the steps of: dosing a contact lens mold comprising optical mold surfaces with a reaction mixture, and sealing said reaction mixture and said optical mold surfaces away from a gaseous environment, wherein said optical surfaces of said contact lens mold were exposed to said gaseous environment comprising greater than 0.5 percent oxygen just prior to said sealing step.

Process of manufacturing contact lenses with measured exposure to oxygen

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Jacksonville Beach, FL, United States of America

Jeffrey D Caltrider