Lateral Orbital Wall
The thickest and strongest of the orbital walls, the lateral wall is formed from 2 bones (Fig 1-5):
The lateral orbital tubercle (Whitnall tubercle), a small elevation of the orbital margin of the zygomatic bone, lies approximately 11 mm below the frontozygomatic suture. This important landmark is the site of attachment for the following structures:
check ligament of the lateral rectus muscle
suspensory ligament of the eyeball (Lockwood suspensory ligament)
lateral canthal tendon
lateral horn of the levator aponeurosis
Excerpted from BCSC 2020-2021 series: Section 2 - Fundamentals and Principles of Ophthalmology. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.