Patents Represented by Attorney, Agent or Law Firm Anthony G. Vella
  • Patent number: 6739722
    Abstract: Apparatus for measuring accommodation of a lens in an eye includes a target, a Badal lens, and a viewing aperture, where the Badal lens and the viewing aperture are positioned so that when the target moves towards or away from the lens, the apparent size of the target remains constant to a subject looking in the viewing aperture regardless of the distance the target moves. The apparatus may be provided in a compact housing and may include a mirror placed in the housing so that the viewing aperture can be placed away from the optical axis of the lens. The apparatus includes a controller to control the movement of the target. The apparatus measures the accommodation of a lens based on the distance the target moves during an examination. Methods of measuring accommodation of a lens in an eye of a subject are also disclosed.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: May 25, 2004
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Stephen W. Laguette, Alan J. Lang, Alan Schier, Joseph Warren Asa