Patents by Inventor Stuart L. Graham

Stuart L. Graham has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110218456
    Abstract: For electrophysiological assessment of visual function using a head mounted stereo display (e.g. virtual reality goggles) for displaying a stimulus which is used to generate a retinal or cortical response. In particular, a method for objective electrophysiological assessment of visual function of at least one eye of a subject includes presenting a visual stimulus to at least one eye of the subject, recording at least one of a retinal response and, a cortical response generated as a result of the presenting; analyzing said response and, as a result of said analyzing, forming a map of the visual function of the at least one eye of the subject 6. The invention also relates to as system for such electrophysiological assessment.
    Type: Application
    Filed: May 17, 2011
    Publication date: September 8, 2011
    Inventors: Stuart L. GRAHAM, Iouri MALOV, Alex KOZLOVSKI, Alexander KLISTORNER
  • Patent number: 7972278
    Abstract: For electrophysiological assessment of visual function using a head mounted stereo display (e.g. virtual reality goggles) for displaying a stimulus which is used to generate a retinal or cortical response. In particular, a method for objective electrophysiological assessment of visual function of at least one eye of a subject includes presenting a visual stimulus to at least one eye of the subject, recording at least one of a retinal response and, a cortical response generated as a result of the presenting; analyzing said response and, as a result of said analyzing, forming a map of the visual function of the at least one eye of the subject6. The invention also relates to as system for such electrophysiological assessment.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: July 5, 2011
    Assignee: The University of Sydney
    Inventors: Stuart L. Graham, Iouri Malov, Alex Kozlovski, Alexander Klistorner
  • Patent number: 7740592
    Abstract: For electrophysiological assessment of visual function, a head mounted stereo display (eg virtual reality goggles) for displaying a stimulus is used to generate a retinal or cortical response. In particular, a method for objective electrophysiological assessment of visual function of at least one eye of a subject includes presenting a visual stimulus to at least one eye of the subject, recording at least one of a retinal response and a cortical response generated as a result of the presenting, analyzing said response and, as a result of said analysing, forming a map of the visual function of the at least one eye of the subject. The invention also relates to a system for such electrophysiological assessment.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: June 22, 2010
    Assignee: The University of Sydney
    Inventors: Stuart L. Graham, Iouri Malov, Alex Kozlovski, Alexander Klistorner
  • Publication number: 20090076406
    Abstract: For electrophysiological assessment of visual function using a head mounted stereo display (e.g. virtual reality goggles) for displaying a stimulus which is used to generate a retinal or cortical response. In particular, a method for objective electrophysiological assessment of visual function of at least one eye of a subject includes presenting a visual stimulus to at least one eye of the subject, recording at least one of a retinal response and, a cortical response generated as a result of the presenting; analyzing said response and, as a result of said analyzing, forming a map of the visual function of the at least one eye of the subject6. The invention also relates to as system for such electrophysiological assessment.
    Type: Application
    Filed: October 17, 2008
    Publication date: March 19, 2009
    Inventors: Stuart L. GRAHAM, Iouri Malov, Alex Kozlovski, Alexander Klistorner
  • Publication number: 20030158497
    Abstract: This invention relates to the electrophysiological assessment of visual function using a head mounted stereo display (eg virtual reality goggles) for displaying a stimulus which is used to generate a retinal or cortical response. In particular, the invention relates to a method for objective electrophysiological assessment of visual function of at least one eye of a patient, which method comprises presenting a visual stimulus to at least one eye of the patient, recording at least one resultant response, selected from the group consisting of a retinal response and a cortical response, generated as a result of the presenting; analysing said response; and as a result of said analysing, forming a map of the visual function of the at least one eye of the patient. The invention also relates to as system for such electrophysiological assessment.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 21, 2003
    Inventors: Stuart L. Graham, Iouri Malov, Alex Kozlovski, Alexander Klistorner
  • Patent number: 6477407
    Abstract: The multifocal pattern visual evoked potential (VEP) has been adapted to detect visual field loss as a form of objective perimetry, with specific application to glaucoma. Multifocal pattern stimuli are cortically scaled and presented using a standard system. In order to effectively record the visual field responses, a unique array of bipolar occipital straddle electrode positions are employed, overlying the occipital visual cortex. Multi-channel VEP recording is then performed using these electrode positions. The responses are combined from the channels to produce a representation of the visual up to 25° of eccentricity. Analysis of results to detect early field defects is enhanced by asymmetry analysis between fellow eyes, and by a scaling algorithm to compensate for inter-individual variations. VEP objective perimetry corresponds well with subjective Humphrey visual field defects, showing loss of signal in the areas of visual field loss.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: November 5, 2002
    Assignee: The University of Sydney
    Inventors: Alexander I. Klistorner, Stuart L. Graham