分离性垂直偏斜(Dissociated Vertical Deviation以下简称DVD)系指双眼交替遮盖时,遮盖眼常呈上斜状态,是与一般斜视的神经支配法则相矛盾的一种异常运动,由于它常合并隐性眼球震颤及弱视,故往往容易误诊为隐性眼球震颤引起的弱视,同时可与任何类型的斜视同时存在,临床上往往当作一般斜视进行手术,所以常在水平斜视矫正后6个月至3年出现,其效果当然并不理想,因此分离性垂直偏斜在斜视与弱视的诊断和治疗上占有相当重要的位置,本病原因不明,常和先天性内斜视同时存在,国外文献报告较多,国内仅有二篇报道。今就分离性垂 Dissociated Vertical Deviation (Dissociated Vertical Deviation, hereinafter referred to as DVD) means that when the eyes alternate cover, the cover is often oblique state, is contrary to the general law of strabismus contradiction of an abnormal movement, because it often associated with recessive Nystagmus and amblyopia, it is often easy to misdiagnosed as recessive nystagmus caused by amblyopia, and can coexist with any type of strabismus, clinically as a general strabismus surgery, it is often in the horizontal strabismus after 6 months to 3 Year, its effect is of course not ideal, so the vertical deviation of separation in the diagnosis and treatment of strabismus and amblyopia occupy a very important position, the cause of the disease is unknown, often and congenital esotropia exist, more foreign literature, There are only two reports in China. Separation of vertical now