What is Tullio phenomenon in electronystagmography (ENG)?

Updated: Aug 06, 2019
  • Author: Angela G Shoup, PhD; Chief Editor: Arlen D Meyers, MD, MBA  more...
  • Print


This is not as routinely used as pressure fistula testing, but the Tullio phenomenon is an option for patients on whom a hermetic seal cannot be obtained.

Follow the procedure for a pressure fistula test, but instead of varying the air pressure, present a 500-Hz tone at 95 dB for no longer than 3 seconds. Monitor eye movements and ask the patient about his or her subjective experience.

Results of Tullio phenomenon testing are positive if nystagmus is observed.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!