By Katie Au, Class of 2029 Figure 1.  Retinal fundus photographs of the right and left eyes in a patient with acute optic neuritis, a common presenting manifestation of multiple sclerosis. Acute optic neuritis (ON) is a common first symptom for a later diagnosis of multiple sclerosis (MS). It is known that high-contrast visual acuity—the ability to read black letters on a white background—tends to … Continue reading A Real Eye-Opener: How Demyelination May Be Linked to Poor Color Vision