对95例具有各种斜视与非斜视患者利用FD2（使用改良的阶段程序）进行单眼和双眼立体视觉测试。
Stereoacuity was tested monocularly and binocularly in 95 patients with a variety of strabismic and nonstrabismic conditions, using the FD2, employing a modified staircase procedure.
结论：对于集合不足型共同性外斜视，行双眼或单眼内直肌缩短术可获得较满意的效果。
CONCLUSION: Binocular or monocular medial rectus muscle resection in treatment of convergence insufficiency concomitant exotropia has satisfactory effect.
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