What is the optical canal?

The optical canal is a bony passage located in the skull that transmits the optic nerve (CN II) and the ophthalmic artery from the orbit to the cranial cavity. It is situated in the lesser wing of the sphenoid bone, and its primary function is to facilitate vision by allowing the optic nerve to convey visual information from the retina to the brain. The canal's anatomical significance also includes its proximity to other important structures in the skull, making it a critical area in neurosurgery and ophthalmology.