blepharospasm symptoms

Blepharospasm is manifested as uncontrollable blinking, muscle twitching, eyelid closure, decreased vision, often bilateral; physical examination, visible non-autonomous intermittent contraction of orbicularis oculi muscle, sleep symptoms can disappear, can be accompanied by uncontrollable facial and head and neck muscle twitching. According to the cause can be divided into primary and secondary, secondary is often caused by eye irritation signs, such as corneal or conjunctival foreign bodies, trichiasis, blepharitis, eye xerosis, etc. Treatment should begin with treatment of any underlying eye condition causing eye irritation. Severe blepharospasm may be treated with intramuscular injection of botulinum toxin. If symptoms do not relieve, surgery may be performed.