Videonystagmography  is at test of the balance systems more or less similar to ENG described above.but it has a much higher resolution,is a much more advanced test and provides much more of clinically relevant diagnostic information in patients suffering from vertigo and imbalance especially if it is of central origin. It is also is a much better test to evaluate the ittricacies of the oculo-motor system. The oculo-motor system plays a very big role in gaze stabilization which is one of the primary functions of the balance system and thorough evaluation of the oculo-motor system is vitally imprtant in all patients presenting with vertigo/imbalance especially if it is due to a disorder in the central vestibular pathways.