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Horner's Syndrome

Abstract

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Synonyms of Horner's Syndrome

  • Bernard-Horner Syndrome
  • Oculosympathetic Palsy

Disorder Subdivisions

  • No subdivisions found.

General Discussion

Horner syndrome is a relatively rare disorder characterized by a constricted pupil (miosis), drooping of the upper eyelid (ptosis), absence of sweating of the face (anhidrosis), and sinking of the eyeball into the bony cavity that protects the eye (enophthalmos). These are the four classic signs of the disorder.

The congenital, and more rare, form of Horner syndrome is present at birth but the cause is not known. Most often, Horner syndrome is acquired as a result of some kind of interference with the sympathetic nerves serving the eyes. The underlying causes can vary enormously, from a snake or insect bite to a neck trauma made by a blunt instrument.

Organizations related to Horner's Syndrome

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