目的：探讨不同手术方式治疗基本型间歇性外斜视的临床疗效。方法将80例基本型间歇性外斜视患者分为两组，A组行单眼外直肌退后加内直肌缩短术，B组行双眼外直肌等量退后手术，对所有患者在术前、术后进行眼位＼三级视功能检查，所得结果进行比较分析。结果 A组40例患者术后眼位正位率为70％；B组40例患者术后眼位正位率90％，两组比较差异具有统计学意义（ P ＜0．05）。 B组I级、II级功能的恢复率虽高于A组，但两组比较差异均无统计学意义（ P ＞0．05），B组III级功能的恢复率高于A组，两组比较差异具有统计学意义（ P ＜0．05）。结论采用双眼外直肌等量退后手术治疗基本型间歇性外斜视优于行单眼外直肌退后加内直肌缩短术。%Objective To investigate the effects of different surgical Methods on clinical outcomes of basic inter-mittent exotropia .Methods Eighty cases of basic intermittent exotropia were divided into two groups .Patients in Group A received unilateral lateral rectus recession combined with medial rectus shortening .Patients in Group B received bilateral external rectus recession surgery alone .Binocular vision , eye position , and orthophoria rate were compared between the two groups before and after treatment .Results The rate of orthophoria , i.e., normal eye position , was significantly different in the two groups:70%in Group A versus 90%in Group B ( P <0.05).The recovery rates for monocular vision and for fusion were higher in Group B than in Group A , but these differences were not statistically significant ( P >0.05), where-as stereopsis in Group B was better than in Group A ( P <0.05).Conclusion Bilateral external rectus recession for the treatment of basic intermittent exotropia will yield better binocular vision outcomes and therefore is superior to lateral rectus recession combined with medial rectus resection .
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