[Electrophysiological examinations are sometimes useful].
D004596:Electroretinography; D005074:Evoked Potentials, Visual; D006801:Humans; D008297:Male; D008875:Middle Aged; D010039:Otorhinolaryngologic Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D014786:Vision Disorders / Q000209:etiology*
Les examens électrophysiologiques sont parfois utiles.