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What causes blepharospasm?

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  1. American Academy of Ophthalmology
     
    American Academy of Ophthalmology answered:

    Blepharospasm is caused by an involuntary nerve impulse to the eyelid. In the majority of patients, it develops abruptly with no known cause.

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    Blepharospasm is caused by an involuntary nerve impulse to the eyelid. In the majority of patients, it develops abruptly with no known cause. More

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