B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 11/00 (2006.01) G02C 7/04 (2006.01)
Patent
CA 2347392
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 x 10 -9 to 2.6 x 10 -9 moles/cm2 O2 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.
L'invention porte sur une méthode de fabrication de lentilles cornéennes comprenant les étapes suivantes : dosage d'une moule de lentilles cornéennes comprenant des surfaces optiques, avec un mélange réactif sensible à l'oxygène, les surfaces optiques de la moule de lentilles cornéennes ayant de 0,13 x 10 -9 à 2,6 x 10 -9 moles/cm2 d'oxygène pour interférer avec le mélange réactif. L'invention prévoit également une méthode de fabrication de lentilles cornéennes comprenant les étapes suivantes : le dosage d'une moule de lentilles cornéennes comprenant des surfaces optiques avec un mélange réactif et le scellage du mélange réactif et des surfaces optiques pour les protéger d'un environnement gazeux, les surfaces optiques de la moule de lentilles cornéennes ayant plus de 0,5 % d'oxygène immédiatement avant l'étape de scellage.
Caltrider Jeffrey D.
Calvin Olin W.
Enns John B.
Kindt-Larsen Ture
Ricard Joseph W.
Johnson & Johnson Vision Care Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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