Blepharospasm in Adults

What Is Blepharospasm?

Blepharo Spasm

Greek word for "eyelid"

Involuntary muscle contraction

2 Types1

  • Primary blepharospasm: no cause can be found through examination or diagnostic testing1
  • Secondary blepharospasm: a cause is identified, which could include1:
    • Exposure to a drug known to cause the condition
    • Another disorder of which blepharospasm is a symptom


  • Excessive blinking
  • Light sensitivity
  • Watering eyes
  • Dry eyes
  • Eye irritation

Muscles Involved

Muscles involved in blepharospasm. Muscles involved in blepharospasm.


  1. Tsui JKC. Blepharospasm and hemifacial spasm. In: Brin MF, Comella CL, Jankovic J, eds. Dystonia: Etiology, Clinical Features, and Treatment. Philadelphia, PA: Lippincott Williams & Wilkins; 2004:151-157.