VNG system

VNG System
Examination of ocular movements for equilibrium analysis

2 Channel VNG System
Videonystagmography with comprehensive software

The Otopront VNG system measures eye movements by using two independent miniature videocameras integrated in the nystagmus goggles. Recorded by image processing software the eye movements are displayed in real time on a PC monitor.

VNG eliminates the need of needles or electrodes and facilitates diagnosis by high quality recording, for quick and easy review.

The VNG module consists of medical PC, VNG-software and ergonomically designed goggles with USB 2.0 connection. The basic version of the VNG system provides tests for spontaneous nystagmus, caloric test and positioning test.

The application is based on a patient database, which contains all related data. An extension for optokinetic and rotational test is optional but possible at any time.

The combined video mask can be used either for investigations into darkness or for visual stimulation. The video image is focusable and can be individually adjusted horizontally and vertically on the eye of the patient.

The soft cushion guarantees a pleasant and light proof fitting to the face. The mask is light and at the same time stable fitting with a removable lid.

Available VNG Applications

VNG System
With real time imaging of the eyes, automatic nystagmus detection, calculation of all relevant parameters and improved automatic artefact rejection

• Stable binoculary mask with 100 Hz
• Software package for VNG system

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• Foot switch
Combination System VNG & HIT
The system combines the videonystamography (VNG) with the head impulse test (HIT)
• Stable binoculary mask with position sensors
• Software package for VNG and HIT
• Foot switch

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OptoKinetic STIMULUS BOX 2.0

• Microprocessor-based stimulus unit for the optokinetic

• Extension of the VNG-software with optokinetictests

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Subjective visual and horizontal add-on

to test the subjective visual vertical (SVV) as well as the subjective visual horizontal (SVH)
• VNG / HIT maskcover with integrated oLED
• Software package

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VNG with manual pendula test
for evaluating the compensation process of thevestibular organ

Dynamic Visual Acuity Test
as an upgrade for the head impulse test (HIT)

Frenzel system
for combination of the fixation-free observation and recording of the eye movements with a synchron video of the examination

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