Editing Optic neuritis (section)

===Symptoms===
Major symptoms are:

* sudden loss of vision (partial or complete),
* sudden [[Blurred vision|blurred]] or "foggy" vision, and
* [[pain]] on movement of the affected eye.<ref>{{cite web |title=Optic neuritis |url=https://www.mayoclinic.org/diseases-conditions/optic-neuritis/symptoms-causes/syc-20354953 |publisher=Mayo Clinic}}</ref><ref name="auto2">{{Cite web |title=Optic neuritis |url=https://www.rnib.org.uk/your-eyes/eye-conditions-az/optic-neuritis/ |website=RNIB}}</ref><ref name="auto122">{{Cite web |title=ICD-11 for Mortality and Morbidity Statistics |url=https://icd.who.int/browse/2024-01/mms/en#210935787 |website=icd.who.int}}</ref>

Patients with optic neuritis may experience [[Color blindness|dyschromatopsia]] which describes a range of [[color vision]] in the affected eye (especially [[red]]), with colors appearing subtly washed out compared to the other eye. Patients may also experience difficulties judging movement in depth, which can be particular troublesome during driving or sport ([[Pulfrich effect]]). Likewise, transient worsening of vision with increase of body temperature ([[Uhthoff's phenomenon]]) and glare disability are a frequent complaint.

Involvement of the optic nerve may be unilateral or bilateral, depending on the underlying etiology.<ref name=":35"/> For example, MS-optic neuritis often presents unilaterally while NMOSD-optic neuritis and MOGAD-optic neuritis more often present bilaterally.

However not everyone who has optic neuritis has problems with their vision.<ref>{{Cite web |date=March 22, 2024 |title=Optic Neuritis |url=https://www.hopkinsmedicine.org/health/conditions-and-diseases/optic-neuritis |website=www.hopkinsmedicine.org}}</ref>