The orbits are bilateral bony cavities located in the skull, below the anterior cranial fossa and anterior to the middle cranial fossa, with openings present in the upper half of the face, on either side of the root of the nose. Each orbit contains the eyeball, the optic nerve, the extraocular muscles, the lacrimal apparatus, as well as adipose tissue, fascia, and nerves and vessels that supply all of these structures.