title: Rhythmic pupillary oscillations accompanying a complete third-nerve palsy.
abstract: An automobile accident left a 26-year-old man in stupor with a complete right third-nerve palsy. Although fixed to light, the right pupil (only) exhibited continual concentric oscillations, initially at 1 Hz but slowing to 0.3 Hz during 2 weeks' observation. The pathophysiologic characteristics of this unique movement are uncertain but may involve central parasympathetic nervous system dysfunction.
authors.affiliation: Department of Neurology, Los Angeles County/University of Southern California Medical Center.
authors.forename: J R
authors.initials: JR
authors.lastname: Keane
mesh_terms: D000328:Adult; D005133:Eye Movements; D005403:Fixation, Ocular; D006801:Humans; D007499:Iris Diseases / Q000150:complications*; D008297:Male; D009886:Ophthalmoplegia / Q000150:complications*; D014792:Visual Acuity; D014794:Visual Fields