Conditions Associated With Congenital Nystagmus: The 4 A's

There are many different eye conditions that are associated with congenital nystagmus; theoretically, any bilateral visually-significant pathology present at birth or in infancy during the critical period of visual development may interfere with the development of stable fixation (1)  Eventually I'll get around to discussing the finer points of nystagmus; but for now, I'm sticking to some basic study stuff.

Orbital Roof

The orbital roof separates the orbit from the anterior cranial fossa, which houses the frontal lobes of the brain.  There are several structures and features regarding the orbital roof that we need to remember.  While this article will try to list most of the important features of the orbital roof, it is by no means comprehensive.

Orbital Bones

There are 7 bones that comprise the orbit.  It is our job as ophthalmologists to be able to readily identify these bones and know pretty much every bump, notch, hole, and contour of these bones and what structures pass through, travel along, and attach to these bones.