Bausch-Lomb Incorporated

Gregory C Niu

Jay Friedrich Kunzler

Philip L Keogh

William G Deichert

Martin F VanBuren

Monomeric polysiloxanes end-capped with activated unsaturated groups are copolymerized with acrylic acid to form hydrophilic, water absorbing polysiloxane contact lenses. These contact lenses are unexpectedly capable upon hydration of retaining from 1 percent to about 99 percent by weight, based upon the total weight of the copolymer, of water.

Water absorbing contact lenses made from polysiloxane/acrylic acid

A water absorbing, soft, hydrophilic, flexible, hydrolytically stable, biologically inert contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a polysiloxane which is .alpha.,.omega. terminally bonded through divalent hydrocarbon groups to polymerizably activated unsaturated groups and which contain hydrophilic sidechains is disclosed.

Hydrophilic contact lens made from polysiloxanes which are thermally

A hydrolytically stable, biologically inert, transparent, hydrophilic, contact lens comprising a polysiloxane containing hydrophilic sidechains is disclosed.

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Lexington, MA, United States of America

Gregory C Niu