Ophthalmology I Flashcards
1
Q
what are the dilated pupil disorders?
A
- efferent defect (CN III)
- adie’s tonic pupil
- pharmacologic pupil
- traumatic mydriasis
2
Q
what are the constricted pupil disorders?
A
- horner’s syndrome
- argyll robertson pupil: bilateral tonic
3
Q
what is the direction of the eye in a CN III lesion?
A
abducted
4
Q
what are the symptoms of adie’s tonic pupil?
A
- blurred vision (near)
- periocular discomfort
- decreased depth perception
5
Q
triad of horner’s syndrome
A
- ptosis
- miosis
- anhydrosis
6
Q
what is argylle robertson pupil?
A
- pupils accommodate but do not react to light
- pupils are irregular and small
- usually bilateral
- associated with syphilis, diabetes, alcoholism
7
Q
why are pupillary defects not observed in CN III lesions from diabetes and vascular disease?
A
- in CN III the pupillary fibers are on the outside of the nerve
- compressive lesion will affect this
- vascular lesion will not affect pupil as much (diabetes, vascular disease)
8
Q
pupil involved CN III is an aneurysm of _________ until proven otherwise?
A
PCA
9
Q
manifestations of CN IV palsy
A
- vertical oblique diplopia
- compensatory head tilt to opposite shoulder
10
Q
manifestations of CN VI paresis
A
- loss of abduction
- horizontal diplopia
