Neuro-Ophthalmology

Question 1

Foville’s syndrome

Answer 1

CN 5,6,7 and Horner’s: pons lesion near CN 6

Question 2

CN 9,10,11, Horner’s ipsi decreased pain/temperature of face, contra pain /temp of trunk and limbs

Answer 2

lteral medullary syndrome of wallenburg: stroke of vertebral artery or PICA

Question 3

topical cocaine

Answer 3

blocks reuptake of NE. abnormal result: no dilation

Question 4

Hydroxyamphetamine

Answer 4

releases NE from nerve terminal: distinguishes pre from post ganlgionic. positive in pregnalionic lesion. neg is post gangiolonic lesions

Question 5

apraclonidine

Answer 5

alpha 2>alpha 1. affected horner’s deinervated: hypersensitvie to alpha 1. reversal of anisorcoia: horner’s pupil dilates more.

Question 6

5th-6th decade, french candaian, progressive dysphagia followed by ptosis, CPEO

Answer 6

OCULOPHARNYGEAL DYSTROPHY (AD)

Question 7

chromsome 19; christmass tree cataract, pigmentary retinopathy, ptosis fish face, testicular atrophy, frontal baldness, cardiac

Answer 7

myotony dystrophy

Question 8

ptotic lid lifted, other lids fall, cogan’s lid twich (when pt looks from downgaze to up, lid will overshoot)

Answer 8

MG

Question 9

AChe inhibitor

Answer 9

Tensilon

Question 10

Length of intraocular; intraorbital; cananilicular, intracranial optic nerve

Answer 10

1,25,16, 9