Key Points:
  1. Increasing attention paid on vertigo complaint in otolaryngology clinics.
  2. Effective assessments and quick diagnosis of vestibular disorder are essential for clinicians.
  3. Video head impulse test (vHIT) is a standard and repetitively test to evaluate functions of the semicircular canals.
  4. 25 degrees rather than conventional 0 degree is a better gaze angle while performing vHIT on vertical canals.
  5. Cross-centers comparison of three vHIT systems indicated a new system with a new kind of goggle is able to perform as good.