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Drug-induced reverse ocular dipping
  1. Naoyuki Kitagawa,
  2. Michio Sakurai
  1. Department of Neurology, Kohsei Chuo General Hospital, Tokyo, Japan
  1. Correspondence to Dr Naoyuki Kitagawa, knaoyuki.neurology{at}

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A 19-year-old male patient, who had undergone laminectomy for lumbar disc herniation the previous day, reported involuntary upward movement of his eyes. The eyes exhibited conjugate upward movement, followed by a brief tonic phase, and rapid downward movement to the primary position. These cycles were repeated at irregular intervals (video 1). He was awake and could respond to simple commands and explain his symptoms in his own words. There were no neurological abnormalities …

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