V0425 Vestibular

vn4151VO425 is Interacoustics’ top of the line VNG offering. In addition to the features offered with VN415, VO425 also includes a full battery of oculomotor tests. The complete VO425 test battery consists of Spontaneous Nystagmus, Gaze, Smooth Pursuit, Saccade, Optokinetics, Positional, Dix-Hallpike and Bithermal / Monothermal Caloric. And of course you can run the Nydiag 200 rotary chair with the VO425 software as well.

Additional features include:

  • Cutting edge eye trackers adjust for make-up and dilated pupils
  • Reader station enables shared access to patient reports from multiple work stations
  • MWST (Monothermal Warm Caloric screening test after two warm irrigations)
  • Torsional eye movement observation with full screen eye images
  • Sleek portable design
  • Fully randomized combined vertical and horizontal saccade protocol
  • Detailed oculomotor testing
  • Customizable
  • Monocular or binocular options
  • ANSI standard compliant
  • Real time analysis
  • Synchronized video playback
  • High speed resolution up to 174 Hz in monocular mode


Camera IEEE1394 FireWire®
Resolution 640 x 480 Pixels
Images 105 images per second binocular, 174 images per second monocular
Safety Standards IEC 60601-1 (General Safety),
IEC 60601-1-1 (System Safety),
IEC 60601-1-2 (EMC)
Physical Specifications Goggle Weight:
-with one camera
• 240g (non-occluded view)
• 320g (occluded view)-with two cameras
• 305g (non-occluded view)
• 385g (occluded view)

Dispensing box with 24 pcs. of Disposable Goggle Foam pads
• 302 x 216 x 131mm (L x W x H)

Tests Bithermal Caloric Test
Spontaneous Nystagmus Test
Positional Test
Dix-Hallpike Test
Gaze Test
Smooth Pursuit Test (Tracking)
Saccade Test
Optokinetic Test
Sinusoidal Pendular test (only with rotary chair)
Step Rotation test (only with rotary chair)
System requirements: Software Windows® 7, 32 or 64 bit
Windows® Vista Business SP1, Vista Ultimate
Windows® XP SP2
Microsoft .Net 2.0 Framework
Windows Installer 3.x
System requirements: Hardware Intel Core 2 Duo processor 1.8 GHz or better
Minimum 2GB DDR3 RAM
160 GB Harddisk
Laptop PC: One 34 mm PCExpressCard slot available
Desktop PC: One available PCI slot for included Texas Instruments chipset PCI FireWire® board
Three USB ports available
One VGA port available
Monitor resolution 1024 x 768 or better
Included Parts Installation CD
Combi goggle with 1 or 2 cameras
Disposable combi goggle foam pads -1 box/24 pieces
H. 34mm FireWire® PCExpressCard with Power Supply
Otoaccess™ database software and OtoAccess™ language pack 1.0
Operation manual
VNG Quick Guide
Multilingual CE instruction
Optional Parts Rotary chair
Irrigator, water or air
Additional foam for Combi Mask
USB Footpedal
LCD projector