Subacute loss of vision - Optic Neuritis Flashcards
1
Q
Uni/bi
Onset
A
Unilateral - monocular
Hours or days
2
Q
Colour vision - dyschromatopsia - is affected.
What colour is affected?
How may the patient describe this?
A
Reds
Red desaturation - e.g. post box
3
Q
What pain may they have?
A
Pain on eye movements
4
Q
What about the pupil?
A
Afferent pupillary defect
5
Q
How long does it take to recover?
A
2-6 wks
6
Q
What is another disease linked to this?
A
MS - 45-80% of patients develop it within 15 yrs
7
Q
How is it treated?
A
High dose - Methylprednisolone (slightly stronger than prednisolone)
Then switch to prednisolone
