Horner’s syndrome
Horner’s syndrome is a rare condition that arises when there is damage to the sympathetic nerves supplying the eye and surrounding facial muscles. It can result from various underlying issues, such as tumors, chest infections, or traumatic injury. It manifests as a trio of classic symptoms:
- Ptosis: Drooping of the upper eyelid on the affected side.
- Miosis: Constriction of the pupil in the affected eye.
- Anhidrosis: Lack of sweating on the affected side of the face.
These symptoms occur because the sympathetic pathway, which controls certain functions like pupil dilation and eyelid lifting, is disrupted. Diagnosis typically involves clinical examination and imaging studies to identify the underlying cause. Treatment focuses on addressing the root problem causing the nerve damage.
Source | Author Doctor Nikas Samuolis, reviewed by Prof. Virginijus Šapoka | Vilnius University | Faculty of Medicine | Head of the Department of Internal Medicine, Family Medicine, and Oncology