Other

Johnson and Johnson Vision Care, Inc.

Jonhson & Johnson

Jeffrey Steven

Stephen C Pegram

Kent Young

Kerry T Sanders

Ture Kindt-Larsen

John B Enns

Olin W Calvin

Jeffrey D Caltrider

Terry L Spaulding

Joseph W Ricard

This invention provides an apparatus and method for assembling first and second mold parts having contact lens forming surfaces, wherein said first mold part has a reaction mixture on said contact lens forming surface, said apparatus comprising movement preventing means which prevents said first mold part from moving while said second mold part is controllably moved from a first position wherein said second mold part is not in contact with said reaction mixture on said first mold part to a position wherein the majority of said contact lens forming surface of said second mold part has been wetted by said reaction mixture on said first mold part.

Method and apparatus for contact lens mold assembly

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, FL, United States of America

Jeffrey Steven