Blepharospasm is involuntarily contraction or blinking of the eyelids. Botox or botulinum toxin is very useful on treating the condition.
Sometimes, our neurons of central nervous system malfunction, which leads to contractions of involuntary eye muscle leading to blepharospasm. The causes of this eye disorder are however still under research. Nevertheless, if ones feels uncontrolled blinking of eyes which is affecting our eyes and quality of life, it is always recommended to visit an eye doctor.