neuro-opthalmology

Question 1

pupillary disturbances

Answer 1

1) abnormal reaction to light and dark

2) anisocoria (different size)

Question 2

normal pupil

Answer 2

anisocoria - 0-1mm
anisocoria mus be the same between both eyes
react to light and dark

Question 3

constriction innervation

Answer 3

parasympathetic - sphincter

Question 4

dilation innervation

Answer 4

sympathetic - radial

Question 5

horner syndrome

Answer 5

small pupil with poor reaction to dark. sympathetic dysfunction, dilation large, ptosis

Question 6

large pupil with poop reaction to light with abnormal structure

Answer 6

iris damage

Question 7

large pupil with poor light reaction, tonic dilation, segmental palsy, light near dissoc

Answer 7

tonic, pupil gets rewired after parasympathetic injury.

Question 8

painful horner syndrome

Answer 8

dissection of carotid artery

Question 9

large pupil with poor light reaction, ptosis, eom paresis

Answer 9

third nerve palsy

Question 10

chiasm

Answer 10

temporal field loss

Question 11

upper quads on left

Answer 11

left optic radiations, meyers loop

Question 12

upper quads, with macular sparing, on left

Answer 12

left inferior occipital

Question 13

APD

Answer 13

afferent pupilary defect

afferent - prior to synapse in LGN- this is the retinal ganglion cell

Question 14

diplopia

Answer 14

this is double vision
binocular? if yes, misalignment
Which direction is it worse in?

Question 15

oscillopsia

Answer 15

appear of visual world moving

Question 16

nystagmus

Answer 16

two phases, slow or fast

Question 17

slow-slow

Answer 17

pendular

Question 18

fast-slow

Answer 18

Jerk

Question 19

mixed

Answer 19

slow-slow and fast-slow

Question 20

downbeat nystagmus

Answer 20

localized to cervical-medullar junction, no congenital