CausesBy Mayo Clinic Staff
Eyelid twitching may be triggered by:
- Alcohol intake
- Bright light
- Caffeine excess
- Irritation of the eye surface or inner eyelids
- Physical exertion
Benign essential blepharospasm is a movement disorder (dystonia) of the muscles around the eye. No one knows exactly what causes it. Hemifacial spasm is typically caused by a small artery that irritates a facial nerve.
Other conditions that sometimes include eyelid twitching as a sign include:
- Corneal abrasion
- Dry eyes (decreased production of tears)
- Light sensitivity
Very rarely, eye twitching may be a sign of certain brain and nervous system disorders. When it is, it's almost always accompanied by other signs and symptoms. Brain and nervous system disorders that can cause eye twitching include:
- Bell's palsy
- Cervical dystonia
- Multiple sclerosis
- Oromandibular dystonia and facial dystonia
- Tourette syndrome
Eye twitching may be a side effect of drugs, particularly medication used to treat epilepsy and psychosis. And eye twitching is sometimes the earliest sign of a chronic movement disorder, especially if other facial spasms develop too.
Jan. 21, 2016
Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.
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