The apex of the pyramid-shaped bony orbit is the optic foramen, whereas the base (the orbital rim) is formed: superiorly by the frontal bone, medially by the frontal process of the maxilla, inferiorly by the zygomatic process of the maxilla and the zygomatic bone, and laterally by the zygomatic bone, the frontal process of the zygomatic bone, and the zygomatic process of the frontal bone.