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