Abstract: A system and associated method for computerized rotational head impulse test (crHIT) to assess the semicircular canals of the human vestibular system clinically in patients with balance disorders. The system utilizes a rotary chair combined with a head mounted VOG system with head tracking sensors. The crHIT protocol uses the same physiologic principles as the known video head impulse test (vHIT). The crHIT utilizes whole-body rotation via the chair to yield a persistent controlled, repeatable, comfortable, reliable stimulus can be delivered while recording eye movements with video-oculogaphy.

Abstract: An objective screening platform for mTBI screening includes a vergence testing stimulus generator visible to a subject and configured for presenting visual stimulus to a subject which forms an optical target stimulus for at least one vergence test; at least one data acquisition unit for obtaining objective physiologic responses of the subject unit based upon each of the visual stimulus presented to the subject in each test, wherein the objective physiologic responses for each test include at least one eye position parameter and at least one pupil area parameter; and a controller configured for using at least one eye position parameter and at least one pupil area parameter to screen for the presence of mTBI of the subject.

Abstract: A system and associated method for computerized rotational head impulse test (crHIT) to assess the semicircular canals of the human vestibular system clinically in patients with balance disorders. The system utilizes a rotary chair combined with a head mounted VOG system with head tracking sensors. The crHIT protocol uses the same physiologic principles as the known video head impulse test (vHIT). The crHIT utilizes whole-body rotation via the chair to yield a persistent controlled, repeatable, comfortable, reliable stimulus can be delivered while recording eye movements with video-oculogaphy.

Abstract: A portable VOG device is disclosed that will facilitate the effective and efficient screening for TBI in military personnel in forward deployed military settings or remote locations using minimally trained staff. This includes the establishment of a protocol that will provide cost effective pre-screening of military personnel prior to deployment to establish a baseline of brain function prior to possible future injury. The efficiency of the device will promote subsequent follow-up screening to assess the effectiveness of prescribed TBI treatment. Further protocols for diagnosis and rehabilitation applications using the same virtual reality portable device will allow more advanced usage for clinicians providing ongoing evaluation and treatment.

Abstract: A head mounted compact goggle based video oculography system comprises: a goggle base surrounding the subject's eyes; an angled hot mirror; at least one digital camera attached to the goggle base along the top side of the goggle base taking images of at least one of the subject's eyes via a hot mirror reflection; an integral display for selectively displaying visual stimulus to the subject through the hot mirror and attached to the goggle base along the rear side of the goggle base; a controller coupled to the display generating each visual stimulus for each neuro-otologic test to be displayed to the subject via the display and coupled to each digital camera and receiving and storing data signals there from, the controller configured to calculate eye related data from the digital camera images during each neuro-otologic test, and configured to display the eye related data to users.

Abstract: A video oculography (VOG) system for calculation and display of Corrective Secondary Saccades Analysis is disclosed and utilized in a method for Objective Diagnostics of Internuclear Opthalmopligia, Ocular Lateral Pulsion, Progressive Supernuclear Palsy and Glissades. The method comprises the steps of using a VOG system to calculate corrective saccades. The VOG based system is configured to collect eye images of the patient in excess of 60 hz and configured to resolve eye movements smaller than at least 3 degrees of motion and collects eye movement data wherein at least one fixation target is presented to the subject in a defined position configured to yield a voluntary saccadic eye response from at least one eye of the patient. The latency, amplitude, accuracy and velocity of each respective corrective saccade and totals latency and accuracy are calculated.

Abstract: A method and associated apparatus for validating testing procedure in objective ophthalmic eye testing is implemented for eye evaluation applications requiring subject compliance with eye fixation to a visual target.

Abstract: A video oculography based neuro-otologic testing and evaluation apparatus and associated method comprises the steps of: Obtaining images of the subject's eyes with a digital camera; Selectively displaying visual stimulus to the subject on a display; Generating each visual stimulus to be displayed from a controller; Receiving and storing data signals from each digital camera in the controller; Calculating eye related data from the digital camera images and visual stimulus; Displaying the eye related data to users; Generating a video synchronization signal by the controller associated with each visual stimulus which identifies when the display is displaying the associated visual stimulus; Receiving and coupling the video synchronization signal with at least the eye data from the digital camera; and Synchronizing calculations based upon the eye data and the visual stimulus by the controller.

Abstract: A method of measuring and analyzing an ocular response in a subject comprising the steps of: Providing a video oculography based system for the subject with the system configured to collect eye images in excess of 60 hz and configured to resolve eye movements smaller than at least 3 degrees of motion; Collecting eye data with the video oculography based system wherein at least one stimulus is presented to only one eye of the subject and configured to yield a pupil eye response from at least one eye of the subject; Calculating pupilometry measurements from the eye data, wherein the pupil measurements are calculated independently for the subject's left and right eyes for each stimulus presented to the subject, and wherein comparative left and right pupilometry measurements from the eye data are calculated; analyzing a subject's ocular response based upon at least one of the calculated pupilometry measurements.

Abstract: A portable VOG device is disclosed that will facilitate the effective and efficient screening for TBI in military personnel in forward deployed military settings or remote locations using minimally trained staff. This includes the establishment of a protocol including optokinetic testing that will provide cost effective pre-screening of military personnel prior to deployment to establish a baseline of brain function prior to possible future injury. The efficiency of the device will promote subsequent follow-up screening to assess the effectiveness of prescribed TBI treatment. Further protocols for diagnosis and rehabilitation applications using the same device will allow more advanced usage for clinicians providing ongoing evaluation and treatment.

Abstract: A video oculography based neuro-otologic testing and evaluation apparatus and associated method comprises the steps of: Obtaining images of the subject's eyes with a digital camera; Selectively displaying visual stimulus to the subject on a display; Generating each visual stimulus to be displayed from a controller; Receiving and storing data signals from each digital camera in the controller; Calculating eye related data from the digital camera images and visual stimulus; Displaying the eye related data to users; Generating a video synchronization signal by the controller associated with each visual stimulus which identifies when the display is displaying the associated visual stimulus; Receiving and coupling the video synchronization signal with at least the eye data from the digital camera; and Synchronizing calculations based upon the eye data and the visual stimulus by the controller.

Abstract: A portable virtual reality device is disclosed that will facilitate the effective and efficient screening for TBI in military personnel in forward deployed military settings or remote locations using minimally trained staff. This includes the establishment of a protocol that will provide cost effective pre-screening of military personnel prior to deployment to establish a baseline of brain function prior to possible future injury. The efficiency of the device will promote subsequent follow-up screening to assess the effectiveness of prescribed TBI treatment. Further protocols for diagnosis and rehabilitation applications using the same virtual reality portable device will allow more advanced usage for clinicians providing ongoing evaluation and treatment.

Abstract: A high speed pupil dilation tracking can be incorporated into a light-weight VOG system which includes at least one digital camera connected to and powered by a laptop computer through a firewire connection. An EOG system may be incorporated directly into a VOG system base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the VOG system base. The VOG system may track and record head position and VOG system base slippage. An animated eye display may provide data in a more meaningful fashion. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.

Abstract: A video oculography system for calculation and display of Corrective Secondary Saccades Analysis is disclosed. A method for Objective Diagnostics of at least one of traumatic brain injury, Internuclear Opthalmopligia, Ocular Lateral Pulsion, Progressive Supernuclear Palsy And Glissades comprises the steps of using a VOG system to calculate corrective saccades. The video oculography based system for the subject is configured to collect eye images of the patient in excess of 60 hz and configured to resolve eye movements smaller than at least 3 degrees of motion. The video oculography based system collects eye movement data wherein at least one fixation target is presented to the subject in a defined position configured to yield a voluntary saccadic eye response from at least one eye of the patient. The latency, amplitude, accuracy and velocity of each respective corrective saccade and totals latency and accuracy is calculated.

Abstract: A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection and allows for region of interest image processing. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems. The VOG system may track and record head position and goggle slippage. An animated eye display may provide data in a more meaningful fashion. An EOG system may be incorporated directly into a goggle base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.

Abstract: A portable virtual reality device is disclosed that will facilitate the effective and efficient screening for TBI in military personnel in forward deployed military settings or remote locations using minimally trained staff. This includes the establishment of a protocol that will provide cost effective pre-screening of military personnel prior to deployment to establish a baseline of brain function prior to possible future injury. The efficiency of the device will promote subsequent follow-up screening to assess the effectiveness of prescribed TBI treatment. Further protocols for diagnosis and rehabilitation applications using the same virtual reality portable device will allow more advanced usage for clinicians providing ongoing evaluation and treatment.

Abstract: In the field of eye tracking, greater accuracy or resolution in monitoring movement of the eye can be gained by digitizing the eye, and tracking the movement of a landmark with fixed size and a fixed location relative to the eye's local coordinate system. The edge of the iris can be used as such a fixed landmark. Through the location and or establishment of at least a portion of the outer edge of the iris and/or an iris center point, both large and small scale eye movements, including but not limited to micro-tremors, can be traced with a higher degree of accuracy. This will aid in the diagnosis of diseases, assessing state of consciousness, and defining brainstem death.

Abstract: A compact neuro-otologic testing device and method provides an image producing laser with a right hand, servo controlled galvanometric based XY interface. The high quality closed loop servo control system that can drive the target (i.e. the laser image) in excess of 1,000,000 degrees/second2 and at velocities in excess of 12000 degrees/second. The bandwidth of the XY interface is greater than 400 Hz, providing high image reproducibility. The repeatability and position accuracy of the target is +?3 arc-seconds and the field of range of the XY interface are about 60 degrees (i.e. about 60 degrees horizontal and 60 degrees vertical).

Abstract: A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection and allows for region of interest image processing. An EOG system may be incorporated directly into a goggle base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. The VOG system may track and record head position and goggle slippage. An animated eye display may provide data in a more meaningful fashion. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.

Abstract: A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection and allows for region of interest image processing. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems. The VOG system may track and record head position and goggle slippage. An animated eye display may provide data in a more meaningful fashion. An EOG system may be incorporated directly into a goggle base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.