两种常用的下斜肌减弱术对睑裂的影响

目的 观察下斜肌后徙和下斜肌后徙前转位术术后睑裂的变化,了解两种术式对睑裂的影响.方法 记录18只眼下斜肌后徙术和16只眼下斜肌后徙前转位术患眼手术前后睑裂的情况,并对各组数据进行分析,统计结果用x+s表示.结果 下斜肌后徙术治疗的18只眼,术后睑裂变小(0.77±0.43)mm,与术前相比有显著统计学意义(P＜0.01,t=6.19).下斜肌后徙前转位术治疗的16只眼,术后睑裂变小(1.3±0.26)mm,与术前相比有显著统计学意义(P＜0.01,t=43).下斜肌后徙前转位术治疗组与下斜肌后徙术治疗组相比存在明显统计学意义(P＜0.01,t=32).所有术眼下眼睑术后存在不同程度的局部隆起.非手术眼术后睑裂无明显变化,统计结果无意义.28例患者中,术后2周22例矫正良好、5例好转、1例无效.结论 下斜肌后徙和下斜肌后徙前转位术,术后睑裂有不同程度的变小,而下斜肌后徙前转位术组较下斜肌后徙术组变小得更为明显.

The Effect of Two Myoweakening of the Inferior Oblique Muscle on the Palpebral Fissure

Objective To observe the effect and the change of the palpebral fissure after recession and anterior transposition of the inferior oblique muscle.Methods To record the preoperative and postoperative situation of the palpebral fissure in the 18 eyes recession and 16 eyes anterior transposition of the inferior oblique muscle,then the data was statistics analyzed.Results The narrowing of the palpebral fissure after surgery (mean+ SD)was 0.77±0.43 mm in the 18 eyes in the recession group,?1.3±0.26 mm in the 16 eyes in the anterior transposition group.The differences were statistically significant between the preoperation and the postoperation of the recession group(P＜0.01,t=6.19)and the anterior transposition group(P＜0.01,t=43),then this difference was statistically significant between the two groups(P＜0.01,t=32).The bulging of the lower eyelid was found in all ease after surgery.However,it was not change on the palpebral fissure of all non-surgical eye after surgery,the difference was not statistically significant.The 28 cases of patients were 78.57 percent effective two weeks after surgery.Conclusions Recession and anterior transposition of the inferior oblique muscle cause significant narrowing of the palpebral fissure as a sole procedure.It was more obviously in anterior transposition group than that of recession group.