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目的探讨A型斜视的临床特征及手术方式。方法35例A型斜视患者,依据是否有上斜肌亢进、亢进程度及双眼单视功能状况,行上斜肌减弱术或水平直肌垂直移位术。原在位水平斜视行常规水平肌手术矫正。观察手术前后眼位、上斜肌功能及双眼单视功能的变化。结果35例A型斜视患者中,13例行上斜肌减弱术,22例行水平直肌垂直移位术,术后效果良好。结论上斜肌亢进为A型斜视的主要原因之一。上斜肌减弱术及水平直肌垂直移位术是矫正A型斜视的有效手术方式。在上斜肌亢进明显时,前者为首选。
Objective To investigate the clinical features and surgical methods of type A strabismus. Methods 35 cases of type A strabismus patients, according to whether there is hyperactivity, hyperparathyroidism and binocular vision status, upper oblique reduction or vertical rectus abdominis transposition. The original level of horizontal strabismus line of conventional horizontal muscle surgery. Observed before and after surgery, eye position, oblique function and binocular vision changes. Results Among 35 patients with type A strabismus, 13 patients underwent oblique muscle weakening and 22 patients underwent vertical transposition of horizontal rectus muscle. The results were satisfactory. Conclusion Oblique hyperactivity is one of the main causes of type A strabismus. Upper oblique muscle weakening and horizontal rectus vertical shift surgery is an effective correction of type A strabismus surgery. In the oblique hyperthyroidism was obvious, the former is preferred.