Medical equipment Listings for Electronystagmograph on MedWrench. With its comprehensive test battery, advanced technology, and seamless data management, VisualEyes™ enhances your diagnostic accuracy and efficiency. VisualEyes™ 525 is our full-range VNG. The ICS Chartr 200 is the latest generation of our well-known vestibular test systems. You might have an ENG test to check for balance disorders or other inner ear problems. 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. We also provide proven vestibular treatment programs and an effective.