what is vng or eng test
Electronystagmography (ENG) is a diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus.It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.lectronystagmography (ENG) is a diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus.