方法：收集60例4～12岁V型外斜视患儿，按接受手术年龄分为三组：A组(4～6岁)、B组(7～9岁)、C组(10～12岁)，每组20例。采用三棱镜加遮盖法及同视机检查33cm及6m处正前方及向上、向下注视的斜视度，以三棱镜度记录。同视机检查同时视、融合视，Titmus立体视图检查近立体视。对术后1wk未能建立同时视功能的患儿给予双眼视觉训练，术后1，2，4，8wk随访。

结果：A、B组手术前、后双眼视觉功能有明显差异(P<0.05)。术后1wk C组较A、B组双眼视觉功能有显著性差异(P<0.05)。术后8wk 3组间双眼视觉功能无明显差异(P>0.05)。

结论：早期手术矫正眼位正位，及术后积极有效的双眼视觉训练对于V型外斜视患者术后立体视的重建十分有利。

METHODS: Sixty V-pattern exotropia children were enrolled in this study and were divided into three groups according to their age: group A(4～6 years old), group B(7～9 years old), and group C(10～12 years old), 20 cases for each group. Patients received routine refraction and ophthalmic examinations. Distance and near deviation were measured by prism-covering method and synoptophore. The simultaneous perception and fusion were examined with a synoptophore, and the stereacuity was measured with stereograms(Titmus). The children who didn't reconstruct binocular vision function 1wk after surgery received binocular vision training. The data were recorded before and 1, 2, 4, and 8wk after surgery.

RESULTS: Binocular vision significantly improved among the children after surgery in group A and B(P<0.05). Significantly divergence showed between group C and the other groups 1wk after surgery(P<0.05). Binocular vision of the three groups all significantly improved 8wk after surgery, with no significant differences(P>0.05).

CONCLUSION: V-pattern exotropia children can benefit from early surgical correction and training after surgery in reconstruct binocular vision.