II. Indications

  1. Comatose patient with suspected Brainstem injury

III. Contraindications

IV. Technique

  1. Eyes open
  2. Head is rotated briskly from side to side

V. Interpretation

  1. If Brainstem intact:
    1. Eyes move opposite to head movement (keeps focus despite head movement)
    2. Eyes deviate contralaterally, looking away from rotation
  2. If Brainstem injury:
    1. Eyes follow direction of head rotation, staying fixed in orbits and not keeping focus

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