Optic Neuritis Flashcards
1
Q
What are the causes of optic neuritis?
A
Multiple sclerosis, diabetes, syphilis.
2
Q
What is this a presentation of:
Unilateral decrease in visual acuity over hours/days, poor colour discrimination, pain worse on eye movement, RAPD, central scotoma?
A
Optic neuritis
3
Q
What is the treatment for optic neuritis and how long does recovery take?
A
High-dose steroids, 4-6 weeks.
4
Q
What is the 5-year risk of developing MS if there are >3 white matter lesions on MRI after an episode of optic neuritis?
A
50%
