The new standard for observing, recording, and playback of eye movements allows simultaneous subjective observation of your patient's eye movements and objective collection and analysis of eye movement waveforms during vestibular testing and rehabilitation. In addition to patient comfort, VisualEyes has been designed for maximum flexibility and ease of use. The laptop VisualEyes system is ideally suited for portability and space savings.

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

Laptop VNG / ENG Combination

• Pentium 4®, 2.8 GHz processor
• 15" LCD screen
• Windows XP®

USB Video Capture

• USB video capture sources with integrated audio capture
• Standard - Resolution Tracking system with 30 Hz video
• Available in 2- and 4-channel configurations

Stimulus Choices

• Short Digital Light Bar provides ±20° viewing angle and comes with a tripod stand for portability (Standard for Laptop systems)

• Long Digital Light Bar provides ±20°, 25°, and 30° viewing angles with the patient sitting 39" from the DLB

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

VisualEyes Goggle and Camera for 2-Channel Systems

• Camera easily adjusts for interpupillary distance
• Camera moveable to either eye
• Built in microphone for audio recording
• Push button yellow-green fixation light
• External focus knob
• Comfortable, light tight goggle
• Goggles and camera have a combined weight of only 9.6 oz.

                          Binocular Goggles

• Adjustable nose bridge for different size faces (interpupillary distance)
• Pivotable cameras center the patient's pupil in the video image
• Integrated external focus knob and built-in fixation light for each eye
• Eye portal covers snap closed for vision denied recording or snap open when recording eye movement requiring a full field of view
• Provides +/- 45° horizontal viewing, +25° / -35° vertical viewing
• Micro video cameras keep weight of binocular goggles to just 7.5 oz

RF Remote

• Replaces the footswitch
• Has forward and backward buttons and a separate laser pointer
• Receiver connects to the computer via USB

Software Features

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

• Digitally record 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.
• Measures horizontal and vertical eye movements.

VisualEyes Laptop VNG gives you unsurpassed efficiency in testing your patients with the following additional features in testing and analysis.

• Iris Calibration - Instead of calibrating the patient's eye movements against the digital light bar or LCD projector stimulus, the calibration values can be obtained by measuring the patient's iris diameter. This gives the tester the ability to recalibrate the patient's eyes if needed when vision is denied during positional and Dix-Hallpike tests as well as caloric tests.
• Auto-Threshold - Adjusting the threshold sliders for each patient can be a cumbersome task to tweak the level perfectly. Now Spectrum can automatically determine the desired threshold level with the click of a button.
• Analysis Retracking - When the EyeMax video is recorded for the test, the eye data can be reacquired from the saved video. With an adjustable threshold setting in analysis, the data can remove noise in the data due to an inadequate threshold setting. Auto-Threshold is also available during Analysis Retracking.
• Pupillometry - In addition to recording the horizontal and vertical locations of the pupil, the pupil diameter's size can be tracked. When analyzed, Spectrum calculates and reports 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

Compliance

• American National Standards Institute (ANSI S3.45 -- 1999)
  "PROCEDURES FOR TESTING BASIC VESTIBULAR FUNCTION"
  • The digital light bar is available with the typical red LED's or with yellow-green LED's preferred by the standard
  • 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
  • IEC 601-1-1 patient safety standard
  • EN 50081-1 EMC Emission standard
  • EN 50082-1 EMC susceptibility standards

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Last modified: 06/20/05