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目的比较先天性眼球震颤合并麻痹性斜视行中间带移位术前后的立体视锐度的变化。方法采用同视机图片与Titmus立体视图本,对17例先天性眼球震颤合并麻痹性斜视,做手术前正前方与中间带方位的、远与近距离立体视定性和定量测定。实行中间带移位术后,再同样做远与近立体视锐度测定,进行分级对比分析。结果所有病例术后正前方基本不震颤或明显减轻,视力提高2～5行,代偿头位基本消除或改善,立体视从无到有,视锐度从800″至60″逐级提高,由周边体视转变为黄斑体视、以至中心凹体视。结论先天性眼球震颤合并麻痹性斜视立体视觉术前可有部分发育,中间带方向比非中间带方向好,经中间带移位术后,不仅解决了眼球震颤、代偿头位、视力问题,而且能使远近立体视均得到不同程度的提高。
Objective To compare the changes of stereopsis before and after medial shift with congenital nystagmus and paralytic strabismus. Methods A total of 17 cases of congenital nystagmus combined with paralytic strabismus were treated with stereoscopic camera images and Titmus stereopsis. The stereotaxic and quantitative stereotactic stereoscopic images were measured before and at the anteroposterior direction. After the implementation of the shift with the middle, and then do the same far and near stereoacuity determination, grading comparative analysis. Results All cases were basically no tremor or significant reduction in postoperative anterior vision, visual acuity increased by 2 to 5 lines, the basic elimination or improvement of compensatory head position, stereoscopic non-existent, visual acuity increased from 800 “to 60” step by step, From the surrounding stereopsis into macular visual, as well as the central fovea. Conclusions Congenital nystagmus combined with paralytic strabismus stereotaxy may have partial development before surgery, the direction of the intermediate zone is better than that of the non-intermediate zone, and after the medial zone shift, not only the nystagmus, compensatory head position, vision problems, But also can make near and far stereoscopic vision have been improved to varying degrees.