Patents Assigned to Igel International Limited
  • Patent number: 5125728
    Abstract: The invention is incorporated to a soft contact lens. This lens has a concave posterior surface for fitting to the eye of a wearer, and a convex anterior surface for exposure from the eye of a wearer. The soft contact lens contains a correction for the eye having a component of astigmatism. A novel posterior surface has a central refractive segment sufficient in dimension to afford pupil coverage and therefore correction to the vision of the eye of the wearer. This central portion is configured for imparting a component of astigmatic correction of the eye of a wearer in a first central zone containing the refractive segment. When the contact lens is worn, this first central zone is juxtaposed to the central portion of the eye of the wearer. The posterior surface at the first central zone is surrounded by a posterior zone for fititng the soft contact lens to the eye of the wearer.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: June 30, 1992
    Assignee: Igel International Limited
    Inventors: Steve Newman, Don Noack