<prompt> Destruction of right labyrinth causes nystagmus toRight sideLeft sideRotatory nystagmusNo nystagmus  <response>: In sudden vestibular failure, the patient is found to have first degree, second degree and third-degree nystagmus to unaffected side., a so-called paralytic nystagmus Ref: Diseases of EAR - Harold Rudman, Tony Wright - 6th Edition 