间歇性外斜视手术时机探讨

目的 通过观察不同年龄、双眼视功能状态手术前后变化,探讨间歇性外斜视的手术时机.方法 将56例间歇性外斜视患者根据手术时年龄≤5岁、5～9岁和≥9岁分为A、B、C三组,再根据术前有无融合功能及远或近立体视分组,统计分析不同年龄组手术前后眼位、双眼视功能变化,以及手术前后融合功能变化、远或近立体视功能变化.结果 术后眼位正位率A组77.8%、B组91.7%、C组85.7%,差异无统计学意义.双眼视觉功能的恢复率A组88.9%、B组87.5%、C组50.0%,差异显著有统计学意义.结论 B组术后正位率优于A组,但双眼视觉功能的恢复却A组优于B组.术前具有融合点及融合范围者,术后双眼视功能恢复率高.近立体视丧失、远立体视保存者术后远立体视锐度恢复好,术后立体视的恢复由远立体视开始.间歇性外斜视的手术时机应根据病人眼位、年龄、融合状态及立体视功能多方面综合考虑.

Study on the opportunity of operation in intermittent exotropia

Objective To investigate the operating opportunity of the intermittent exotropia,through the observation of perioperative change at different age and binocular vision functional status, Methods 56 cases were divided into 3 groups according to operation age .younger than 5 years old was named group A. 5-9 years old was named group B. older than 5 years old was named group C. Grouped again according to their fusion faculty and near or distance stereoacuity. To statistic and analysis the change of the position of eye and binoculus visual function at different age, and the change of the fusion faculty and near or distance stereoacuity before and after operation. Results The normal eye position rate at post-operation did not show significant difference:group A was 77.8 % ,group B was91.7 %;group C was 85.7%. The recovery rate of the binocular function show significant difference:group A was 88.9 %;group B was 87.5 %;group C was 50.0%. Conclu-sions The normal eye position rote at post-operation in group B surpassed group A. But The binocular func-tion in group A recovered better than group B. The recovery of distance stereopsis acuity were best in cases with near stereopsis lost but distance stereopsis keeping. The recovery of stereopsis after operation followed the distance stereopsis.The opportunity of operation of the intermittent exotropia should synthetically consider the age,eye position,fusion faculty and distance stereoacuity of the patients in many ways.