间歇性外斜视手术治疗的临床观察

Surgery on 56 cases of intermittent exotropia

目的 :对 56例间歇性外斜视术后患者进行追踪观察 ,探讨手术年龄与双眼视觉恢复率的关系。方法 :手术前后用三棱镜遮盖法 ,同视机检查斜视度 ,AC/A比值及视网膜对应情况 ,术后进行同视机训练。结果 :4～ 7岁双眼视觉恢复率最高 ,与 8～ 13岁组之间差异有高度显著性 (P <0 .0 1) ,8～ 13岁组与 14～ 17岁组差异有显著性 (P <0 .0 5) ,14～ 17岁组与 18岁以上组之间差异无显著性 (P >0 .0 5)。结论 :对间歇性外斜视患者应早期手术 ,年龄越小术后双眼视觉恢复率越高。同视机训练使一些患者能重新建立起正常视网膜对应 ,恢复双眼单视功能。

Objective: To explore the relationship between the age for operation and the recovery rate of vision ,56 cases with intermittent exotropia were followed up. Methods: The patients were performed operations by prism-covering approach, examined the degrees of exotropia, measured the AC/A ratios, and examined the retinal correspondence. After the operation, they were exerted exercises with synoptophore.Result:The visual recovery rate for aged 4～7 was the highest, it had significant difference with those aged 8～13(P<0.01). The rates of the groups aged 8～13 and aged 14～17 had remarkable differences(P<0.05), yet of the groups aged 14～17 and aged above 18 had no remarkable differences (P>0.05).Conclusions:The results show the younger to be operated, the better visual recovery they gain. Synoptophore exercise plays an important role in establishing normal retinal correspondence and regaining binocular single vision function.