Abstract
A case of vertical nystagmus induced by chronic thinner inhalation was reported.
An 18-year-old Japanese boy had inhaled vapor of thinner for several years and sensory disturbances of the distal parts of the extermities, and a gait disturbance became evident.
The only characteristic finding in the ENG test was direction-changing opposing vertical positioning nystagmus, which was reproducible in the subsequent tests. Oculomotor function and caloric responses were within normal limits.
From the neurootological findings diffuse cerebellar lesions were suspected.
