Whitnall's tubercle

Orbital And Eyelid Anatomy

I'm going to shift gears a little bit and start reviews on some of the other sections.  I originally had planned to go in order of the BCSC sections and follow the OKAP content outline, but I realized that of all the sections to cover, General Medicine is one of the smallest sections in terms of content to know.  So while I will likely get back to it sometime in the future, I wanted to make sure the key subjects were discussed prior to the test.

There are many facts in the Fundamentals and Principles of Ophthalmology section of the BCSC that will likely be tested as quick recall.  I promise, I will eventually provide numerous resources and tools to help remember these facts; for this article, I will try to cover the most important concepts.  I am intentionally leaving out details that may be more challenging to test (meaning I have a hard time coming up with a practice question about it).

Whitnall's Tubercle

The lateral orbital tubercle, or Whitnall's tubercle, is found on the zygomatic bone.  According to the Basic and Clinical Science Course, it is typically around 11 mm inferior to the frontozygomatic suture (the junction between the frontal bone and zygomatic bone) (1), and sits 4-5 mm posterior to the lateral orbital rim around the midline (2).