How does optic neuritis (ON) manifest in multiple sclerosis (MS)?

Updated: Oct 08, 2019
  • Author: Christopher Luzzio, MD; Chief Editor: Jasvinder Chawla, MD, MBA  more...
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Answer

Optic neuritis, which involves the afferent visual pathway, typically causes acute to subacute unilateral loss of visual acuity, deficits in color and contrast sensitivity, visual field changes, and pain. Onset of ON typically occurs over minutes or hours, rarely days; however, loss of visual acuity may progress over days to weeks.


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