Horner syndrome is a constellation of neurological signs and symptoms manifested as a classic triad of ipsilateral miosis, eyelid ptosis, and anhidrosis of the ipsilateral face and/o...
When did symptoms begin? (acute vs. chronic)
Any visual symptoms? (blurred vision, field loss, transient visual loss, diplopia)
Previous ophthalmic history? (eye trauma, surgery)
Treatment generally revolves around addressing any underlying etiologies.
Once life-threatening etiologies have been excluded, cosmesis or functional vision impairment due to ...
Postganglionic: usually benign
Central and preganglionic: poorer prognosis
Chronic pupillary constriction
Lyrer PA, Brandt T, Metso TM, et al. Clinical import of Horner syndrome in internal carotid and vertebral artery dissection. Neurology. 2014;82(18):1653–1659.
Mahoney NR, Liu G...
G90.2 Horner’s syndrome
S14.5XXA Injury of cervical sympathetic nerves, initial encounter
337.9 Unspecified disorder of autonomic nervous system
954.0 Injury to cervical sympathetic nerve,...
Horner syndrome triad: ipsilateral miosis, eyelid ptosis, and anhidrosis caused by a lesion of the oculosympathetic pathway
Red flag: Horner syndrome in the presence of acute-onset, ips...
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