Lidlift Kenneth D. Steinsapir, M.D.
Cosmetic, Facial & Eye Plastic Surgery

Arcus Marginalis

Eyelids have several layers. The middle layer is a sheet of connective tissue called the orbital septum. The orbital septum extends the rim of the boney orbit, the space in the facial skeleton that holds the eye. There are two boney orbits, one for each eye. The septum thickens as it inserts on the orbital rim and this thickening is referred to as the arcus marginalis.