Fabrication of contact lenses whereby the yield of lenses removed from plastic casting molds is significantly increased. In fabricating contact lenses where a lens is initially formed in a plastic casting mold, the mold is compressed to a degree sufficient to initiate permanent deformation of the mold...http://www.google.de/patents/US4909969?utm_source=gb-gplus-sharePatent US4909969 - Method and apparatus for removing a contact lens from a plastic mold
