眶内眼神经的断层解剖学研究及其临床意义

目的：为影像检查和眶内手术提供断层解剖学资料。方法：应用50侧成人头颅湿标本制成0．5mm的火棉胶连续切片，对额神经、鼻睫神经、泪腺神经的位置、走行和毗邻进行观测。结果：眼神经的分支额神经、鼻睫神经和泪腺神经均经眶上裂人眶。额神经发出滑车上神经和眶上神经内外支，鼻睫神经与眼动脉伴行，泪腺神经在外直肌上方前行。结论：火棉胶连续切片能够准确显示眶内眼神经的分支、走行，对影像诊断和避免手术损伤均有重要参考价值。

Cross-sectional anatomy of the ophthalmic nerves in orbit and its clinical significance

Objective: To provide sectional anatomical data for imaging diagnosis and avoiding damage during the intraorbital operation. Methods: Fifty orbit specimens of adult cadaveric heads were examined and cut into continuous slices (0.5mm thickness) by using celloidin embedding technique. The location, course and relationship of the frontal, nasociliary and lacrimal nerve were observed. Results: The frontal, nasociliary and lacrimal nerve, divisions of ophthalmic nerve, entered the orbit via the superior orbital fissure. The frontal nerve branched into supratrochlear nerve and medial and lateral branch of supraorbital nerve. The nasociliary nerve coursed with the ophthalmic artery. The lacrimal nerve coursed superiorly to the superior rectus muscle. Conclusions: The divisions of ophthalmic nerve can be seen in the celloidin sections easily, which is great significant for imaging diagnosis and avoiding damage during the intraorbital operation.