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Orbit, Anterior View. Shown in this illustration are the supraorbital notch, ethmoidal foramina, optic foramen, superior orbital fissure (hourglass configuration), greater wing of the sphenoid bone, zygomaticofacial foramen, inferior orbital fissure, infraorbital groove, zygomaticomaxillary suture, infraorbital foramen, infraorbital suture, posterior lacrimal crest, anterior lacrimal crest, frontomaxillary suture, and lamina papyracea. The walls of the orbit include the frontal bone superiorly; ethmoid, frontal, lacrimal, and sphenoid bones medially; maxilla, zygomatic, and palatine bones inferiorly; and zygomatic and sphenoid bones laterally.   Johannes Sobotta, MD, Public Domain, Wikimedia Commons