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作者对80例有眼症状而 CT 阴性者研究了视神经与鼻窦的关系。一般筛窦与视神经相距在5mm 以内。后组筛房可超越蝶窦或突入蝶骨体内与视神经紧贴。作者发现48%的病例后筛窦与同侧视神经管相贴,且大部分以其窦腔的全长与视神经管接触。当后组筛窦向后、向上扩展至蝶窦之上或有重叠现象时,两者紧贴的倾向更为明显。8%的视神经管突入后组筛窦,约3%突入程度大于其管径的10%。故当视神经穿越向外侧气化扩展的后组筛窦时,术中最易受损伤。蝶窦与同侧视神经相邻接者占88%,仅以薄板相隔。50%视神经管突入同侧蝶窦内,23%突出的程度大于其管径的10%。视神经与各鼻窦相隔的视神经管壁的厚度为:
The authors studied 80 cases of ocular symptoms and CT negative optic nerve and sinus relationship. General ethmoid sinus and optic nerve within 5mm. After the group can exceed the sphenoid sinus or into the sphenoid body and the optic nerve close to. The authors found that in 48% of the cases, the ethmoid sinus was attached to the ipsilateral optic canal, with the majority of the total length of the sinus cavity in contact with the optic canal. When the posterior ethmoid sinus to the back, upward expansion to the sphenoid sinus or overlap, the two tend to cling to the more obvious. 8% of the optic canal into the posterior ethmoid sinus, about 3% penetration greater than 10% of its diameter. Therefore, when the optic nerve traverses to the posterior ethmoid sinus of the gasification expansion, the surgery is the most vulnerable. Sphenoid sinus and ipsilateral optic nerve adjoining accounted for 88%, only separated by sheets. 50% of optic canal into the ipsilateral sphenoid sinus, 23% of the degree of prominent greater than 10% of its diameter. Optic nerve and each sinus sinus tube wall thickness separated by: