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目前治疗分离性垂直性偏斜(dissociated vertical deviation,DVD)的所有术式,都是根据相对增强眼球的下转力而设计的。Scott指出,下斜肌末端前移能使其变为下转肌,且其垂直作用的大小取决于下斜肌的后部纤维。为此,采用分级前移下斜肌末端后部纤维的方法,治疗25例48眼DVD,并与21例27眼对照。用交替遮盖试验测量斜视程度,在下斜肌末端后部纤维分级前移时,根据不同程度分成3组。0～6pd之上斜眼,前移到下直肌止端水平后1mm;7～11pd之上斜眼,前移到下直
At present, all procedures for treating dissociated vertical deviation (DVD) are based on the relative enhancement of eyeball downforce. Scott points out that the displacement of the tip of the lower oblique muscle can turn it into the lower rotating muscle, and its vertical size depends on the posterior fibers of the inferior oblique muscle. To this end, using the method of grading advancing posterior oblique muscle fibers, treatment of 48 cases of 48 cases of DVD, and 27 cases of 21 cases of control. Alternating cover test to measure the degree of strabismus, in the posterior oblique muscle posterior fibrosis forward, according to different levels into three groups. 0 ~ 6pd above the eye, before moving to the lower rectus abdominis level after 1mm; 7 ~ 11pd above the eye, move forward to the next straight