眼睑痉挛为眼轮匝肌的部分肌纤维收缩所致。本病儿童多见 ,表现为患儿不自主地频繁瞬目 (俗称眨眼 ) ,约占我院眼科门诊就诊量的 8.83% .除可见到少数患儿患有倒睫、结膜炎、沙眼、角膜上皮糜烂、屈光不正、弱视外 ,大部分患儿病因不明。为了解患儿体内微量元素水平 ,探讨病因 Blepharospasm is caused by contraction of part of muscle fibers of orbicularis oculi. Children with this disease more common, manifested as involuntary children with blink of an eye (commonly known as blink of an eye), accounting for about 8.83% of our hospital ophthalmology clinic .In addition to a small number of children can be seen with trichiasis, conjunctivitis, trachoma, cornea Epithelial erosion, refractive errors, amblyopia, most children with etiology. In order to understand the level of trace elements in children, explore the etiology