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Published online by Cambridge University Press: 22 November 2024
The superior orbital fissure is a cleft, not a foramen, positioned at the back of the orbital cavity with its two largest opposing borders being the lesser wing of the sphenoid bone superiorly and the greater wing of sphenoid bone inferiorly. Through this fissure travel cranial nerves III, IV, VI, and the ophthalmic branch of the trigeminal nerve (more specifically the lacrimal and frontal nerves that branch from the V1), as well as the superior and inferior branches of the ophthalmic vein.
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