Post-operative vestibular function outcomes evaluated by video Head Impulse Test in patients with non-vestibular schwannoma cerebellopontine angle tumors

: (non-vestibular schwannoma cerebellopontine angle tumor : non-VS CPA tumor) non-VS CPA tumor video Head Impulse test (vHIT) vHIT non-VS CPA tumor : non-VS CPA tumor vHIT non-VS CPA tumor MRI vHIT ICS impulse vestibulo-ocular reflex gain (VOR gain) VOR gain catch-up saccade vHIT