AIM:To observe the changes of binocular vision in V-pattern exotropia children before and after surgical correction, and the effect of training in reconstructing the binocular vision after surgical corrections.

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.