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I-Portal BVOG
I-Portal® 4D Eye Tracking

The I-Portal®-VOG is a fully digital, 100Hz, 4D eye tracking system. The patented, lightweight goggle set is included with both the I-Portal®-NOTC and cart based I-Portal®-VNG systems.   The system is also offered as a stand-alone product (SVNG-3) that includes the ability to complete all positional and positioning tests, Calorics and custom tests, with real time binocular eye data.

I-Portal® Benefits:

Accurate Measurement

  • 4-dimensional data collection (horizontal, vertical, torsional and pupilometry)
  • Low weight (inertia) minimizes slippage artifacts
  • Sampling rate of 100Hz captures subtle eye movements
  • Excellent pupil tracking algorithms

Patient Comfort

  • Ultra lightweight and compact
  • Ergonomic design

Ease of Use

  • Digital adjustment of inter-pupilary distance and vertical eye position
  • Real-time video feed and data stream
  • Record and store data and video images for visual playback


  • Ultra lightweight, self-contained system
  • Access to real-time data outside the lab/clinic


  • Printed documentation for insurance reimbursement

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