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目的观察分离性直斜视中上直肌和水平直肌肌肉止端的位置,探讨分离性直斜视的发病机理。方法回顾手术治疗的125例垂直分离性斜视病例,对手术中测量的上直肌肌肉止端距角膜缘距离进行统计,对同时伴有内外斜视的病例内外直肌附着点位置也分别进行统计。结果上直肌止端距角膜缘最近5.5mm,最远8.0mm,平均为6.77mm。DVD与伴有内外斜视的DVD上直肌帐端距离无明显差别,(P>0.05)。DVD垂直斜视角≤20~Δ与>20~Δ时止端位置无明显统计学差别,(P>0.05)。结论DVD病例中存在上直肌止端位置更靠近角膜缘的变异,提示DVD的病因中可能有解剖因素的异常。
Objective To observe the position of the muscle end of upper rectus and lateral rectus muscle in isolated oblique astigmatism and to explore the pathogenesis of isolated oblique. Methods A retrospective study of 125 cases of vertical detachment strabismus treated by surgery was performed. Statistics were made on the distance from the limbus to the corneal edge of the upper rectus muscle measured during the operation. The locations of the rectus fecundation points on both the external and internal strabismus were also calculated. The results of the upper rectus only 5.5mm proximal edge, the farthest 8.0mm, an average of 6.77mm. There was no significant difference in the distance between the DVD and the rectus abdominis on the DVD with exotropia (P> 0.05). There was no significant difference in the end position of DVD when the vertical skew angle was less than 20 ~ Δ and> 20 ~ Δ (P> 0.05). Conclusions There is a variation of the position of the upper rectus closer to the limbus in DVD cases, which indicates that there may be anatomical abnormalities in the etiology of DVD.