• Decreased sweating on the affected side of the face
• Drooping eyelid ( ptosis )
• Sinking of the eyeball into the face
• Small (constricted) pupil (the black part in the center of the eye)

There may also be symptoms of the disorder that is causing the problem.

An eye examination may show:

• Changes in how the pupil opens or closes
• Eyelid drooping

A complete medical and nervous system (neurological) examination can show whether any other parts of the body are affected.

Other tests may include:

• Blood tests
• Blood vessel tests (cerebral angiogram, CT angiogram, or MR angiogram
• Chest x-ray or chest CT scan
• MRI or CT scan of the brain
• Spinal tap (lumbar puncture)

You may need to be referred to a doctor who specializes in vision problems related to the nervous system (neuro-ophthalmologist).

Images

Central nervous system

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Horner syndrome Overview

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Horner syndrome Treatment

Review Date: 06/15/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)