Neurophthalmology Flashcards
1
Q
anisocoria
A
a difference in size between pupils
2
Q
Neurophthalmology exam
A
- look for anisocoria
- check normal reaction to light and dark
- observe pupils in light and dark
- observe papillary response to light
- observe for segmental palsy
- observe for light-near dissociation
- observe for tonic dilation
3
Q
light-near dissociation
A
better constriction when viewing a near object than to light stimulation
4
Q
segmental palsy
A
unequal constriction of the pupil
5
Q
Sympathetic pupillary disturbances:
A
- Sympathetic innervation normally results in papillary dilation.
- If sympathetic pathways are damaged the abnormal pupil will be miotic and will have an abnormal dark reaction, meaning it will not fully dilate.
- This makes the anisocoria worse in the dark.
6
Q
ParaSympathetic pupillary disturbances:
A
- Parasympathetic innervation causes papillary constriction, so damage will result in a pupil that is mydriatic and poorly responsive to light.
- The anisocoria thus appears worse in the light.
7
Q
Horner’s Syndrome: symp or para
A
sympathetic problem
8
Q
Horner’s Syndrome: anisocoria
A
miosis
9
Q
Horner’s Syndrome: light reaction
A
abnormal dark reaction
10
Q
Horner’s Syndrome: other signs
A
Also accompanied by Ptosis and anhidrosis (usually unilaterally)
11
Q
Iris Damage: symp or para
A
Parasympathetic Problem
12
Q
iris damage: anisocoria
A
myadriasis
13
Q
iris damage: light reaction
A
abnormal light reaction
14
Q
iris damage: other signs
A
non-neurologic cause
15
Q
3rd Nerve Palsy: symp or para
A
parasympathetic problems
