Disease Information for Horner's syndrome

Clinical Manifestations
Signs & Symptoms
Decreased sweating/facial unilateral
Unilateral neck anhidrosis
Eyes do not look right/subtle
Miosis/narrow pupils
Narrow pupil/unilateral
Ptosis (blepharoptosis)
Ptosis, unilateral (blepharoptosis)
Pupil Abnormal/Signs
Pupil Response to Darkness Poor
Unequal pupils
Unilateral narrow pupil
Associated Diseases & Rule outs
Associated Disease & Complications
Horner's syndrome
Cervical Sympathetics Lesion
Disease Mechanism & Classification
CLASS/Neurologic (category)
Pathophysiology/Unilateral effects
Pathophysiology/Decreased eye sympathetic enervation
PROCESS/Vegetative-Autonomic/Endocrine (category)
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A syndrome associated with defective sympathetic innervation to one side of the face, including the eye. Clinical features include MIOSIS; mild BLEPHAROPTOSIS; and hemifacial ANHIDROSIS (decreased sweating)(see HYPOHIDROSIS). Lesions of the BRAIN STEM; cervical SPINAL CORD; first thoracic nerve root; apex of the LUNG; CAROTID ARTERY; CAVERNOUS SINUS; and apex of the ORBIT may cause this condition. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp500-11)


External Links Related to Horner's syndrome
PubMed (National Library of Medicine)
NGC (National Guideline Clearinghouse)
Medscape (eMedicine)
Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)