s8 eye Flashcards
1
Q
ptosis which muscle
A
LPS
loss of somatic innervation
2
Q
which muscles innervate eyelid
A
palpebral part of orbiculares oculi- facial nerve
LPS- oculomotor
superior tarsal- sympathetic nerves
3
Q
conjunctiva line
A
lower eyelid (post surface) upper eyelid (post surface) sclera
4
Q
consensual light reflex
A
damage to optic nerve if the pupil constricts when light shined into opposite eye!
> not a problem moving eye (efferent-CN3)
> problem getting light in (afferent CN2)
5
Q
typical presentation of acute primary angle closure glaucoma
A
ophthalmic emergency!
- severe eye pain
- blurring vision
- headache
- neuaseous
- dilated, fixed, oval pupil
- hazy cornea
6
Q
what causes acute primary angle closure glaucoma
why emergency?
A
blockage to aqueous humour
intraocular pressure rises quickly
emergency bc damage to optic nerve can occur - permanent site loss
