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Keywords:

  • progressive supranuclear palsy;
  • internuclear ophthalmoplegia;
  • oculocephalic maneuver;
  • horizontal gaze

Abstract

We present a patient with progressive supranuclear palsy (PSP) who had a bilateral internuclear ophthalmoplegia (INO) that could be fully overcome by the oculocephalic maneuver. In addition to being an unusual finding in the clinical setting of PSP, this phenomenon has interesting implications for the functional control of conjugate horizontal gaze. © 2005 Movement Disorder Society