Episode 61: NAION

This week, we cover non-arteritic anterior ischemic optic neuropathy (NAION), as well as diagnostic pearls to differentiate optic neuropathies and retinopathies in general, and how to differentiate NAION from AAION.

Image credit: American Academy of Ophthalmology Media Library. Link here.

Caption from the AAO website:

“Nonarteritic anterior ischemic optic neuropathy (NAION). a. Fundus photo of the right eye of a patient with NAION demonstrating a swollen optic nerve with retinal nerve fiber layer hemorrhages in the peripapillary area and indistinct changes at the fovea. b. Macular line scan through the swollen optic nerve head and fovea of the patient demonstrates the presence of intraretinal (arrow head) and subfoveal fluid (arrow).”