title: [Horner's syndrome after tonsillectomy].
abstract: METHODS
  A 5-year-old girl underwent a tonsillectomy and developed a right Horner's syndrome after the procedure: we present the clinical findings and the investigations performed.
  
  
  CONCLUSIONS
  Horner's syndrome is caused by a decrease in sympathetic innervation to the eye, and the defining signs are ptosis and miosis. The reported incidence of Horner's syndrome following tonsillectomy is low, although it is one of the commonest operative procedures performed.
authors.affiliation: Servicio de Oftalmología, Complejo Hospitalario Universitario de Albacete SESCAM, Albacete, España. cblancmar@yahoo.es
authors.forename: C I
authors.initials: CI
authors.lastname: Blanco
authors.forename: L
authors.initials: L
authors.lastname: Buznego
authors.forename: M
authors.initials: M
authors.lastname: Méndez
mesh_terms: D002675:Child, Preschool; D005260:Female; D006732:Horner Syndrome / Q000209:etiology*; D006801:Humans; D014068:Tonsillectomy / Q000009:adverse effects*