睫状神经节 是一个副交感神经节 ，位于眼眶当中的视神经与外直肌之间，而外直肌 与鼻睫状神经 (三叉神经在眼睛的一条分支 )交错在一起。睫状神经节同时位在负责瞳孔的收缩与膨胀与接收角膜的感知的神经通路上。

The ciliary ganglion is a parasympathetic ganglion located just behind the eye in the posterior orbit. It measures 1–2 millimeters in diameter and in humans contains approximately 2,500 neurons. The oculomotor nerve coming into the ganglion contains preganglionic axons from the Edinger-Westphal nucleus (a part of the brainstem) which form synapses with the ciliary neurons. The postganglionic axons run in the short ciliary nerves and innervate two eye muscles: