Optic Neuritis

Question 1

What causes optic neuritis?

Answer 1

Inflammation to the the optic nerve

Question 2

Optic neuritis can be the first indication of…

Answer 2

Multiple sclerosis

Question 3

Other than in association with MS, what other conditions cause it?

Answer 3

Syphilis

DM

Question 4

What features are associated with it?

Answer 4

Unilateral decrease in visual acuity over hours or days
Poor discrimination of colours - red desaturation
Pain worse on eye movement
RAPD
Central scotoma

Question 5

How is it managed?

Answer 5

High dose methylprednisolone for 72 hours IV then prednisolone PO for 11 days

Question 6

How long does recovery usually take after treatment?

Answer 6

4-6 weeks

Question 7

What percentage develop MS in next 15 years?

Answer 7

45-80%

Question 8

How does the pain typically feel?

Answer 8

Dull pain behind the eye