Horner's syndrome


Horner's syndrome is the result of another medical condition, such as a stroke, tumor, or spinal cord injury.


Symptoms include a smaller pupil, drooping eyelid, and little or no sweating on the affected side.


There's no specific treatment for Horner's syndrome, but treatment for the underlying cause may restore normal nerve function.

Last Updated Jun 13, 2017

Content from Mayo Clinic ©1998-2020 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. Terms of Use