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What is Horner's Syndrome?

Description of the disease

Horner's Syndrome is a rare neurological disorder that occurs due to damage to the sympathetic nerves in the facial area. This can lead to various symptoms such as ptosis (drooping of the upper eyelid), miosis (constriction of the pupil), as well as anhidrosis (lack of sweating).


  • Central Horner's Syndrome - caused by damage to the sympathetic nerves in the brainstem.
  • Peripheral Horner's Syndrome - caused by damage to the sympathetic nerves in the neck or chest area.


  • Ptosis (drooping of the upper eyelid)
  • Miosis (constriction of the pupil)
  • Anhidrosis (lack of sweating)


Horner's Syndrome can be caused by various factors, including trauma, tumor, infection, or neurofibromatosis.


Diagnosis of Horner's Syndrome includes physical examination, neurovisual testing, computed tomography (CT) or magnetic resonance imaging (MRI).


Treatment of Horner's Syndrome depends on the underlying cause and may include physical therapy, surgery, or medication.


Prevention of Horner's Syndrome includes avoiding trauma, regular medical check-ups, and timely treatment of infections.


A neurologist or neurosurgeon specializes in the diagnosis and treatment of Horner's Syndrome.

Note: This material is provided solely for informational purposes and is not medical advice.