目的:为鼻内窥镜手术路径提供应用解剖学数据和资料,以利于临床手术的成功开展和减少并发症的发生。方法:采用30例随机选取的国人成人无病损的10％福尔马林固定的成人尸头(男21例,女9例),依经鼻腔鼻窦内窥镜下眶尖部手术的相同体位和路径,逐层解剖并测量各解剖标志的深度、仰角、外偏角和旁开距等,观察其正常解剖和变异情况。同时,采用“Fv”线为轴位扫描基线进行扫描并对图像径“Sharp”加工处理。结果:①视神经管眶口和颅口内上壁距前鼻棘的距离分别为62.01±5.51mm和68.23±5.82mm;②眶口内上壁和颅口内上壁与鼻底平面的仰角(前鼻棘为基点)分别为38.77±5.71°和34.08±4.94°,随着深度增加,仰角逐渐减少;③眶口外上壁和颅口外上壁与自前鼻棘的颅正中线的外偏角分别为13.25°±1.15°和8.87±0.94°,随着深度增加,角度越来越小,并向中线靠近;④眶口与颅口离颅正中矢状面的旁开距分别为(1/2)32.01±2.20mm和(1/2)22.94±2.00mm;⑤眶口和颅口外上缘与自喙突的正中矢状线的外偏角分别为26.39±1.87°和26.63±2.84°。结论:①眶尖部和视神经管的CT扫描,应以“FV线为轴位基线,进行2mm连续断层扫描。②经鼻腔鼻窦内窥镜下眶尖部手术,应以经筛窦、蝶窦、眶尖和视神经管入路为最便捷和安伞的入路,以视神经管 OBJECTIVE: To provide anatomic data and data for nasal endoscopic surgical approaches in order to facilitate the successful operation of clinical surgery and reduce the incidence of complications. METHODS: Thirty adult cadaver heads (21 males and 9 females) without adult lesions and 10% formalin-fixed adults were selected. According to the same position of the orbital apex under endoscopic sinus surgery And path, layer by layer anatomy and measurement of the depth of the anatomical landmarks, elevation, angle and side away from the next to observe the normal anatomy and variation. At the same time, using the “Fv” line to scan the baseline for the axial scan and image processing “Sharp” processing. Results: ①The distance between the orbital orifice of the optic canal and the anterior superior cranial wall was 62.01 ± 5.51mm and 68.23 ± 5.82mm, respectively. ② The elevation angle of the orbital upper wall and the superior cranial wall and the nasal floor was As the base point) were 38.77 ± 5.71 ° and 34.08 ± 4.94 °, respectively, with the depth increasing, the elevation angle gradually decreased; ③ The outer declination angles of the orbital upper wall and the cranial outer wall of the cranial wall and the cranial median line were 13.25 ° ± 1.15 ° and 8.87 ± 0.94 °, with the depth increasing, the angle is getting smaller and smaller, and approaching to the midline; ④ The distance between the orbital orifice and the cranial mouth in the median sagittal plane is (1/2) 32.01 ± 2.20mm and (1/2) 22.94 ± 2.00mm, respectively; ⑤ The external sagittal angles of the orbital and cranial outer superior margin and the croak process were 26.39 ± 1.87 ° and 26.63 ± 2.84 °, respectively. Conclusions: ① CT scan of orbital apex and optic canal should be based on "FV line as the baseline, 2mm continuous scan.②Thoracic sinus surgery under nasal endoscopic sinus surgery should be through the ethmoid sinus, sphenoid sinus , Orbital apex and optic canal approach for the most convenient and umbrella approach to the optic canal