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目的 :了解间歇性外斜视术后双眼视功能重建的临床规律。方法 :对 1 0 0例术后建立双眼视觉的患者分成 4组 ,对术前术后双眼视觉进行分析比较。结果 :( 1 ) 1 0 0例中术前有不同程度的近立体视觉者 67例 ,术后增加至 93例 ,术后近立体视觉重建有明显改善 (P <0 0 5)。 ( 2 )术前有同视机Ⅰ级功能者 51例 ,术后增加至 82例 ,术后同视机Ⅰ级功能重建有显著改善 (P <0 0 5)。 ( 3)术前有同视机Ⅱ级功能者 4 0例 ,术后增加至 91例 ,术后同视机Ⅱ级功能重建有显著改善 (P <0 0 5)。 ( 4)组 1组 2术前术后立体视敏度程度分布无显著性差异 (P >0 0 5)。 ( 5)组 1组 3术前术后融合范围大小的比较无显著性差异 (P >0 0 5)。结论 :( 1 )手术对间歇性外斜视双眼视觉功能的重建有显著疗效。 ( 2 )术前同视机融合功能损失最早 ,间歇性外斜视手术时机以同视机融合功能损失为指征。 ( 3)融合功能发育不全是间歇性外斜视发病机制的主要因素。
Objective: To understand the clinical rules of binocular visual function reconstruction after intermittent exotropia. Methods: One hundred and ten patients with postoperative binocular vision were divided into four groups, and their preoperative and postoperative binocular vision were analyzed and compared. Results: (1) In the 100 cases, there were 67 cases of near stereopsis with different degrees before operation. After operation, the number increased to 93 cases, and the improvement of near stereopsis was significantly improved after operation (P <0.05). (2) There were 51 patients with level Ⅰ syncretic function before operation, which increased to 82 after operation. There was a significant improvement (P <0.05) in grade Ⅰ functional reconstruction of the same level of IOL after operation. (3) Preoperative there are 40 cases of class Ⅱ function with the same level of vision, postoperative increased to 91 cases, postoperative Ⅱ level functional reconstruction of the TV with significant improvement (P <0 05). (4) There was no significant difference in stereopsis degree before and after operation between group 1 and group 2 (P> 0.05). (5) There was no significant difference in the size of fusion between group 1 and group 3 before operation (P> 0.05). Conclusion: (1) Surgery has a significant effect on the reconstruction of binocular visual function of intermittent exotropia. (2) The preoperative loss of fusion function with the earliest, intermittent exotropia timing of surgery with the loss of fusion function as an indication. (3) Fusion dysfunction is the main factor of the pathogenesis of intermittent exotropia.