在上直肌的深面，越过视神经上方达眶内侧壁，此神经有许多分支，分别分布于眼球，蝶窦，筛窦，下睑，泪囊，鼻腔粘膜和鼻背皮肤。
目的探讨鼻睫神经痛的临床特征，以提高对该病的诊疗水平。
Objective To explore the clinical character of nasociliary neuralgia and improve the diagnosis and treatment.
目的：探讨鼻睫神经痛的临床特征，以提高对该病的诊治水平。
Objective: To explore the clinical character of nasociliary neuralgia and improve the level of diagnosis and treatment.
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入眶。
Results: the frontal, nasociliary and lacrimal nerve, divisions of ophthalmic nerve, entered the orbit via the superior orbital fissure.
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