Optic neuritis

What it means

Inflammation of the optic nerve.

Optic neuritis can cause loss of vision because of swelling and destruction of the myelin sheath covering the optic nerve and/or direct axonal damage.

Rare diseases that can present with this12

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category