The medial ligament and its much weaker lateral counterpart, attached to the septum and orbit, keep the lids stable as the eye moves.

[3] The septum is perforated by the vessels and nerves which pass from the orbital cavity to the face and scalp.

Orbital septum acts as a physical barrier that prevents the infection of the anterior part of the eye spreading posteriorly.

[5] Orbital septum appears as hypointense on both MRI T1 and T2 weighted images, in contrast with surrounding hyperintense fat.

[6] This article incorporates text in the public domain from page 1026 of the 20th edition of Gray's Anatomy (1918)