Abstract: A method and apparatus for removing a polymeric contact lens from a mold comprising lowering the temperature of the contact lens with a cryogenic material, such as liquid nitrogen, to a temperature and for a time sufficient for the lens to release from the mold without the application of external forces.

Abstract: A contact lens having a cover layer of polyvinyl alcohol and an opaque simulated iris pattern and an associated method of manufacture. The opaque simulated iris pattern obscures the underlying natural iris for superior color transformation, and provides enhanced cosmetic effect.

Abstract: The invention is concerned with the problem that with known plastic casting moulds, especially those of polypropylene, the lenses produced with these moulds have a slippery surface. The invention solves this problem through the use of polymers which are notable for their very low oxygen permeability.

Abstract: A carrier is provided for holding a lens mold that includes a first mold half defining a first optical surface and a second mold half defining a second optical surface. A first frame defines a front surface. A holder assembly is in operative communication with the first frame and is configured to receive the first mold half. The holder assembly is adjustable to rotationally secure the first mold half so that the first optical surface faces outward from the first frame front surface and in any of a plurality of rotational positions with respect to an axis normal to the first frame front surface. A second frame is configured to receive the second mold half so that the second optical surface faces outward from a front surface of the second frame. The second frame front surface opposes the first frame front surface upon alignment of the first frame and the second frame in an operative position.