Table 1.

Clinical features of complete vestibular neuritis.

•Subacute or acute onset of spontaneous vertigo with nausea/vomiting. •Oscillopsia: illusory sensation of spinning of surroundings in the direction of nystagmus quick phase. •Horizontal-torsional spontaneous nystagmus beating toward the unaffected side. The nystagmus follows the Alexander's law, and is partially or totally suppressed under visual fixation. •Impaired function of the semicircular canals as revealed by head impulse tests or caloric testing. •Ipsiversive ocular tilt reaction (head tilt, skew deviation, and ocular torsion) and ipsiversive tilt of the subjective visual vertical/horizontal. The full picture of the ocular tilt reaction, however, is not very often seen clinically. •Decreased or absent responses of vestibular-evoked myogenic potentials (VEMP) during stimulation of the affected ear. VEMP responses might be normal or abnormal depending on the subtype. •Falling tendency toward the lesion side on standing or Romberg test/Ipsiversive rotation during Fukuda stepping test.