MRI,시야장애,ventricle,artery,신경
1 Ocular instability Ocular stabilizing system의 장애로 인한 scillpsia(1) Fixatin system deficitAcquired pendular nystagmusSaccadic scillatin(2) Visuvestibular stabilizing system deficitAcquired jerk nystagmusBilateral vestibular areflexia(3) Neural integratr deficitGazeevked nystagmus Peripheral cular mtr 또는 vestibular system의 hyperactivity로 인한 parxysmal scillpsia(1) Superir blique mykymia(2) Superir canal dehiscence2 Impaired spatial cnstancy (crt.