Patents Assigned to PowerVision
  • Patent number: 7068439
    Abstract: A lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful as an IOL for use in cataract patients that require an adjustment in the optical power of the lens post-implantation. In one embodiment, the lens body carries an array of interior fluid-filled cells in which fluid is controllably moved upon application of energy from an external source to move a fluid media into or out of the cells to thereby alter the lens surface shape.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 27, 2006
    Assignee: Powervision, Inc.
    Inventors: Victor C. Esch, John H. Shadduck
  • Publication number: 20060100701
    Abstract: An accommodating intraocular lens is provided in which a deflectable lens element is anchored to a substrate along its optical axis to define a fluid filled space. Fluid-filled haptics disposed in fluid communication with the space vary the fluid volume in the space responsive to forces applied by the ciliary muscles, thereby causing the periphery of the lens element to deflect relative to the substrate and changing the optical power of the intraocular lens.
    Type: Application
    Filed: October 17, 2005
    Publication date: May 11, 2006
    Applicant: PowerVision, Inc.
    Inventors: Victor Esch, John Scholl, Terry Smiley, Patrick Myall, Bill Evans, Barry Cheskin, Henry Wu
  • Publication number: 20060041307
    Abstract: An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens, responsive to forces applied to a haptic portion to the lens by contraction of the ciliary muscles. Forces applied to the haptic portion may result in fluid displacements from or to the haptic portion from the actuator. Displacement of fluid to the actuator may either increase or reduce the degree of deflection imposed on the lens element by the actuator.
    Type: Application
    Filed: July 1, 2005
    Publication date: February 23, 2006
    Applicant: PowerVision
    Inventors: Victor Esch, Barry Cheskin, John Scholl, Henry Wu, David Smith, Bill Evans, Patrick Myall, Terry Smiley
  • Publication number: 20050264756
    Abstract: Apparatus and methods for manufacturing custom contact lenses and molds is provided wherein a reconfigurable mold has a cavity including deformable surface that is deformed by an array of actuators to define a specified surface contour that will result in a desired wavefront. The specified surface contour may be imparted to moldable material deposited in the cavity, and the array of actuators may be repositioned to optimize the vision correction provided by the custom contact lens. Methods of using the reconfigurable mold to manufacture custom contact lens molds also are provided.
    Type: Application
    Filed: May 16, 2005
    Publication date: December 1, 2005
    Applicant: PowerVision, Inc.
    Inventor: Victor Esch
  • Publication number: 20050143814
    Abstract: A lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful as an IOL for use in cataract patients that require an adjustment in the optical power of the lens post-implantation. In one embodiment, the lens body carries an array of interior fluid-filled cells in which fluid is controllably moved upon application of energy from an external source to move a fluid media into or out of the cells to thereby alter the lens surface shape.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 30, 2005
    Applicant: POWERVISION, INC.
    Inventors: Victor Esch, John Shadduck
  • Publication number: 20050119740
    Abstract: An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes a lens piston that alters the shape of a lens element of the lens to alter the optical power of the lens, responsive to forces applied to a haptic portion to the lens by contraction of the ciliary muscles. Forces applied to the haptic portion are concentrated by the lens piston to provide a greater dynamic range, and may be further augmented by the use of haptic pistons disposed in the haptic portion of the lens.
    Type: Application
    Filed: October 22, 2004
    Publication date: June 2, 2005
    Applicant: PowerVision
    Inventors: Victor Esch, Donald Stenger, Barry Cheskin
  • Patent number: 6836374
    Abstract: A lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful as an IOL for use in cataract patients that require an adjustment in the optical power of the lens post-implantation. In one embodiment, the lens body carries an array of interior fluid-filled cells in which fluid is controllably moved upon application of energy from an external source to move a fluid media into or out of the cells to thereby alter the lens surface shape.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: December 28, 2004
    Assignee: PowerVision, Inc.
    Inventors: Victor Esch, John H. Shadduck
  • Publication number: 20040190153
    Abstract: An intraocular lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful in cataract patients that require an adjustment in the optical power of the lens post-implantation. The lens body carries an array of interior fluid-filled cells in which fluid is controllably moved by micropumps upon application of energy from an external source to move a fluid media into the cells to thereby alter the lens surface shape.
    Type: Application
    Filed: December 12, 2003
    Publication date: September 30, 2004
    Applicant: PowerVision
    Inventor: Victor Esch
  • Publication number: 20040169932
    Abstract: A lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful as an IOL for use in cataract patients that require an adjustment in the optical power of the lens post-implantation. In one embodiment, the lens body carries an array of interior fluid-filled cells in which fluid is controllably moved upon application of energy from an external source to move a fluid media into or out of the cells to thereby alter the lens surface shape.
    Type: Application
    Filed: November 19, 2003
    Publication date: September 2, 2004
    Applicant: PowerVision
    Inventors: Victor Esch, John H. Shadduck
  • Publication number: 20040169816
    Abstract: An accommodating intraocular lens is provided that having optical parameters that are altered in-situ using forces applied by the ciliary muscles, in which a lens body carries an actuator separating two fluid-filled chambers having either the same index of diffraction or different indices of refraction, actuation of the actuator changing the relative volumes of fluid within an optic element of the lens and altering the optical power of the lens.
    Type: Application
    Filed: December 12, 2003
    Publication date: September 2, 2004
    Applicant: PowerVision
    Inventor: Victor Esch