The orbit is a pear-shaped cavity, with an apex directed posteriorly, medially and slightly upwards. The upper and lower walls of the cavity are described as the roof and the floor. It is also bound by the medial and lateral walls. The orbital margin (rim) is strong and, superiorly, it contains the supraorbital notch/foramen which transmits vessels and nerves.
This is a companion discussion topic for the original article at https://patient.info/doctor/zygomatic-arch-and-orbital-fractures