[The diagnostic significance of nystagmus].

Among 402 patients with vertigo and/or dysequilibrium, the incidence of nystagmus was 39.6%. The methods of examination include gaze nystagmus, spontaneous nystagmus, positional nystagmus and positioning nystagmus tests. The specific diagnostic significance of the nystagmus both in peripheral vestibular diseases and in central vestibular diseases were analysed and discussed.