眼眶爆裂性骨折早期立体视觉改变的观察

The stereoscopic vision change in patients with orbital blowout fracture at early stage

目的观察眼眶爆裂性骨折患者早期立体视觉状况。方法应用计算机断层扫描（cT）测量和计算机软件，对28例眼眶爆裂性骨折进行眼眶扫描，并测量眼眶容积及眼球突出度，采用颜少明《立体视觉检查图》检测其立体视锐度以及同视机三级功能的检测。结果患眼眼眶容积比对侧健眼眼眶容积增加，其增加量与眼球内陷度呈正相关。早期眼眶爆裂性骨折患者立体视觉有不同程度的下降。结论眼眶骨折的手术适应证除了考虑眼球内陷、复视等因素之外，立体视锐度的损伤也是手术考量的因素之一。

Objective To observe the stereoscopic vision changes in patients with orbital blowout fracture at early stage. Methods The orbital volume and enophthalmos were measured and calculated with CT measurements and computer software in 28 patients of orbital blowout fracture. The stereoscopic vision of them were examined with stereogram designed by YAN Shao-ming and synoptophone m. Results The or- bital volume on the damaged side was bigger than the undamaged side. The increase in the amount of orbital volume was positively correlated with amount of eyeball wall invagination. The stereoscopic vision of patients of orbital blowout fracture at early stage would decline at different degrees. Conclusion The extra attention should be paid to the changes of stereopsis during the treatment of orbital blowout fracture. Besides endoph-tbalmns and diplopia,the changes of stereopsis should be one of the indicators for surgeries.