Symptoms & Causes of Blepharospasm, Blinking, Eyelid Spasm
Blepharospasm is an abnormal, involuntary blinking or spasm of the eyelids.

Causes of Blepharospasm
Blepharospasm is associated with an abnormal function of the basal ganglion from an unknown cause. The basal ganglion is the part of the brain responsible for controlling the muscles. In rare cases, heredity may play a role in the development of blepharospasm.

Symptoms of Blepharospasm
Most people develop blepharospasm without any warning symptoms. It may begin with a gradual increase in blinking or eye irritation. Some people may also experience fatigue, emotional tension, or sensitivity to bright light. As the condition progresses, the symptoms become more frequent, and facial spasms may develop. Blepharospasm may decrease or cease while a person is sleeping or concentrating on a specific task.
Content Courtesy : www.nei.nih.gov
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