81. One and a half syndrome

  1. The one and a half syndrome is characterized by a conjugate horizontal gaze palsy in one direction and an impairment of the abduction of the eyes in the other. (T/F?)
  2. Horizontal gaze palsy is seen on looking away from the side of the lesion. (T/F?)
  3. The ipsilateral eye has no horizontal movement. (T/F?)
  4. The most common cause of the one-and-a-half syndrome in the young people is Miller-Fisher syndrome. (T/F?)
  5. The most common cause of the one-and-a-half syndrome in older people is multiple sclerosis. (T/F?)
  6. When the lesion that causes a damage to PPRF or abducens nucleus and medial longitudinal fasciculus, also affects the facial nerve, we can talk about an eight-and-a-half syndrome. (T/F?)

  1. F
  2. F
  3. T
  4. F
  5. F
  6. T