Video Nystagmography System

 

 

 

VisualEyes™ is the standard VNG for observing, recording, and playback of ocular movements.  VisualEyes™ provides simultaneous subjective observation of your patient's eye movements and objective collection and analysis of eye movement waveforms during vestibular testing and rehabilitation. The VisualEyes™ FireWire Binocular VNG system has been redesigned for enhanced patient comfort and simplified use.  Using one button click in our Spectrum software, the two eye images can be located and centered for optimized tracking.  The VisualEyes™ system can be operated using the RF remote, giving the tester additional freedom to be next to the patient rather than the computer during testing.

 

The VisualEyes™ video nystagmography system is available in both Laptop and Tower PC configurations.

 

VisualEyes™ Testing Capabilities

  • Nystagmus, positional and Dix-Hallpike, and Caloric tests

  • Saccade, Sinusoidal Pursuit, and Optokinetic tests

  • Active Head Rotation and Dynamic Visual Acuity Tests with the VORTEQ® option

  • Pupillometry test

  • Electrode-recording option

  • Torsion-recording option

 


FireWire Binocular Goggles for 4-Channel Systems

  • High Speed data acquisition of 100 Hz for both eyes
  • Comfortable rubber mask that is easy to clean
  • Elastic headband that routes the camera cables away from the patient
  • Provides +/- 45° horizontal viewing, +20° / -25° vertical viewing
  • Large EyeMax™ video display for viewing the eye image on the screen from the exam table
  • One button click in Spectrum locates the pupil centers and optimizes the location of the video image for best tracking
  • Integrated external focus knob and built-in fixation light for each eye
  • Removable cover for vision-denied testing, software controlled guide lights help to place the cover in dimly lit rooms
  • Audio capture integrated into the system for audio annotation
  • Comfortable light-weight goggles weigh only 12 oz (340 grams) without cables

 

 

USB Monocular Goggles and Camera for 2-Channel Systems

  • Standard - Resolution Tracking system with 30 Hz video
  • Camera easily adjusts for interpupillary distance
  • Camera is moveable to either eye
  • Large EyeMax™ video display for viewing the eye image on the screen from the exam table
  • Built in microphone for audio recording
  • Push button red fixation light
  • External focus knob
  • Comfortable, light tight goggle
  • Goggles and camera have a combined weight of 1.5 pounds

 

 

Stimulus Choices

  • Short Digital Light Bar provides ±20° viewing angle and comes with a tripod stand for portability

  • Long Digital Light Bar provides ±20°, 25°, and 30° viewing angles with the patient sitting 39" from the DLB (Standard for Tower systems)

  • LCD Projector projects the stimulus providing a 48" wide display with customizable angles and target images

 

 

 

RF Remote

  • RF Remote has forward and backward buttons and a separate laser pointer

 

Software Features

 

 

 

VisualEyes™ utilizes Micromedical's Spectrum software that features EyeMax™ digital video recording, allowing you to:

  • Digitally record EyeMax™ eye movement video and audio for the entire test.
  • Directly correlate the video to the eye position data via a scrolling time marker during playback in analysis.
  • Measure horizontal and vertical eye movements.
  • Calculate and report the change in the pupil diameter size and the length of time taken. 

 

Options

  • Can be combined with USB-based ABR/OAE systems and integrated with Accord Patient Information Network software
  • EOG amplifier for electrode capability
  • VORTEQ Active Head Rotation plus DVA-Test Dynamic Visual Acuity
  • Torsion 3D tracking - Horizontal, Vertical, and Torsion angle recording

 

 

Compliance

  • American National Standards Institute (ANSI S3.45 -- 1999)
    "PROCEDURES FOR TESTING BASIC VESTIBULAR FUNCTION"
    • The digital light bar accommodates all of the peak target displacements defined in the standard
    • When the electrode option is used, a sample rate of 100 Hz is utilized per ANSI S3.45 specifications
  • Safety Standards
    VISUALEYES SYSTEMS ARE DESIGNED TO MEET APPLICABLE MEDICAL STANDARDS WORLDWIDE
    • UL544, UL2601
    • EN 60601-1-2 patient safety standard
    • EN 61000-6-4 EMC Emissions standard
    • EN 61000-6-2 EMC immunity standards

 

VisualEyes recorded eye movements:
Nystagmus - Rotary Nystagmus - Random Saccade - Smooth Pursuit

 

For specifications or a price quotation, please call (217) 483-2122 or click here.

 

VisualEyes™ Brochure

 

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