SRNA is joined by Dr. Amanda Henderson and Dr. Elias Sotirchos for a podcast on "Optic Neuritis: When is just ON and when does it mean more?" The medical experts begin by explaining what optic neuritis is, the symptoms, and how it is diagnosed. Treatments, both acute and ongoing, are discussed, as well as circumstances surrounding relapses. The medical experts then discuss ON in the context of other diagnoses such as neuromyelitis optica spectrum disorder, MOG antibody-associated disease, and multiple sclerosis. Finally, rehabilitation and current research on ON is discussed.