Patents Assigned to Pemrable Technologies Inc.
  • Patent number: 5812235
    Abstract: A pair of multifocal contact lenses for a patient comprises a first corneal contact lens having a concave posterior surface and a convex anterior surface. The anterior surface is formed with a power curve including a circular intermediate vision correction zone and an annular distance vision correction zone contiguous with the intermediate vision correction zone. The distance vision correction zone is concentric or coaxial with the intermediate vision correction zone. A second corneal contact lens of the pair also a concave posterior surface and a convex anterior surface. The anterior surface of the second lens is formed with a power curve including a circular intermediate vision correction zone and an annular near vision correction zone contiguous with the respective intermediate vision correction zone. The near vision correction zone is concentric or coaxial with the intermediate vision correction zone of the second lens.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: September 22, 1998
    Assignee: Pemrable Technologies Inc.
    Inventors: Leonard Seidner, Maurice Poster