Abstract: A method of increasing the adhesion of a cast polymer lens to a resinous lens mold by subjecting the resinous mold material to high internal shear force to alter the molecular structure of the resinous mold material to provide for greater bonding between the mold and lens material.

Abstract: A method of making bifocal contact lenses by cutting the distant power on a lathe having an off center rotation to produce a prism lens, removing the lens from the lathe, coating the lens surface with a protective polymer and replacing the lens on a lathe and cutting the near power segment, polishing the near optical segment before removing the protective polymer and means of stabilizing the lens on the eye.

Abstract: A gas permeable dimensionally stable contact lens material which is a transparent, optically clear methylmethacrylate cellulosic copolymer.

Abstract: A method of making plastic lenses by casting a liquid monomer in a container having the required optical curve on the bottom of the container, polymerizing the monomer to form a solid having an optical surface formed within the container and cutting a second optical surface on the solid lens material with the container supporting the lens material during the cutting and polishing operation. Removing the lens from the casting container by applying force against the sides of the container to distort the container and stretching the surface to effect the release of the lens.