间歇性外斜手术时机的选择

The Choice of Surgery Time of Intermittent Exotropia in Children

目的 :探讨儿童间歇性外斜视的手术时机。方法 :4 5～ 9岁儿童间歇性外斜视 4 3例 ,A组 :4 5～ 6岁共 19例 ;B组 :7～ 9岁共 2 4例。采用双外直肌后徙缝线悬吊术 ,手术前后分别测定 33cm和 5m斜视角及双眼视觉诱发电位 (VEP)双眼总和 ,并进行统计学分析。结果 :2 1术后眼位 :斜视度≤ 10 Δ 为正位 ,小年龄组术后 1周及 6个月正位明显高于高年龄组 ,6个月高年龄组欠矫明显高于低年龄组 ,但差异无显著性 (P >0 0 5 )。术后两组间双眼总和比值无显著性差异 (P >0 0 5 ) ,术后 6个月双眼VEP振幅比术前明显增加 (P <0 0 5 )。结论 :小年龄儿童手术成功率并无明显增高 ,儿童间歇性外斜视手术不一定必须在

Objective:To study the surgery time of Intermittent exotropia in Children.Methods:43 children of intermittent exotropia were divided into two groups.Group A included 19 children from 4.5～6 years and group B included 24 children from 7～9 years.Bilateral lateral rectus recession were performed.33cm and 5m deviation angle and VEP binocular summation were measured before and after operation.A statistical analysis has been done.Results:Following-up 1 week and 6 months after operation,the successful aligment rate of group A was higher than group B.But the statistical analysis shows no significant difference(P>0 05).There was no significant difference in VEP binocular summation of the two groups(P>0.05).At 6 months after operation,VEP amplitude of bilateral eyes improved.The variance showed significant difference (P<0.05).Conclusion:There was no difference in the successful aligment and VEP binocular summation between lower age and higher age.The surgery time of intermittent exotropia in children may be choiced after 6 years.