title: Change in the cycle of circadian strabismus.
abstract: OBJECTIVE
  We observed a change in the typical circadian, 24-hour pattern of strabismus (esotropia) in a 2-year-old patient. Methods used include study of the history of the deviation pattern, observation, and measurement of the deviation on the day after travel and six weeks later.
  
  
  CONCLUSIONS
  The patient responded to standard recession-resection surgery with a straight eye position daily, through three months of follow-up. Rapid travel over six time zones probably caused the change in the circadian pattern of strabismus.
authors.affiliation: Department of Ophthalmology, University of Rochester School of Medicine and Dentistry, NY, USA.
authors.forename: H S
authors.initials: HS
authors.lastname: Metz
authors.forename: C
authors.initials: C
authors.lastname: Bigelow
mesh_terms: D002675:Child, Preschool; D002940:Circadian Rhythm / Q000502:physiology*; D004948:Esotropia / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D005260:Female; D006801:Humans; D009801:Oculomotor Muscles / Q000502:physiology / Q000601:surgery; D010507:Periodicity; D013285:Strabismus / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D014195:Travel