Optic Neuritis

Question 1

What is optic neuritis

Answer 1

Inflammation of the rental fibers of the optic nerve (CN II) due to a demyelinating disease
*20-40

Question 2

What are the common causes of optic neuritis

Answer 2

1. Multiple sclerosis
2. Meds
3. Autoimmune

Question 3

What are the signs of optic neuritis

Answer 3

Loss of central vision over a few days
1. Contracted field
2. Enlarged blind spots
3. Pain with eye movement
4. Unilateral
5. Loss of color

Question 4

What will be shown on PE

Answer 4

Fundus
1. Exudates
2. Flame shaped hemorrhages

Question 5

What is the treatment of optic neuritis

Answer 5

1. Methylprednisolone
2. Prednisolone

Question 6

What is the prognosis of optic neuritis

Answer 6

First episode of optic neuritis
*multiple sclerosis will develop in 50% of those patients within 15 years of it