VN415 / VO425
Balance testing solution

A complete nystagmographic and oculographic analysis

NEW FEATURE Print to PDF lets you store test results of a session to your computer or a server.

VN415 software

Video Nystagmography provides ideal conditions for the observation, measurement and analysis of eye movements.

The VN415 module is designed for convenient computer aided analysis of positional and caloric testing. Features rapid data transfer technology enabling high video quality and precise measurements with all results stored in the OtoAccess™ database.
  • Connect and GO!

    VN415 is a completely portable VNG system with no bulky equipment to get in the way. Start the software, place the Goggles on the patient and you are ready to test.

  • High Quality Video

    Performs real time analysis with rapid data transfer (105Hz binocular, 174Hz monocular) which allows for much more data to be analysed, giving very precise measurements.

Vestibular analysis with VNG - VN415/VO425
VO425 software

Our VO425 software module is designed for clinics that carry out detailed balance evaluations. The VO425 contains all the features of the VN415 plus computer aided analysis of oculomotor tests.
  • Ocular Stimuli

    Full field of view visual stimuli are software generated from your laptop or PC connected to a video projector or an LCD screen. The digital stimuli are ideal for both pediatric and adult populations and include several default and imported patterns by your choice.

  • Automatic or Manual

    The system produces highly accurate test results, but you can switch to manual edit mode in all tests to overrule the automatic analysis. In manual edit mode you can add or delete nystagmus marks, change slopes and define alternative areas of analysis.


VN415 is the standard VNG platform with standard protocols for testing

  • Spontaneous Nystagmus
  • Bithermal Caloric
  • Positional
  • Dix-Hallpike


VO425 offers the same test protocols as VN415 and additionally expands into oculomotor tests with standard protocols for

  • Gaze
  • Saccade
  • Smooth Pursuit
  • Optokinetic testing

Both systems can be delivered in monocular or binocular camera configurations. FireWire and the FireWire symbol are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. The FireWire logo is a trademark of Apple Computer, Inc.


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