Flashcards in nystagmus Deck (18):
whats pendular nystagmus
both phases are slow
what are saccadic intrusions?
both phases are fast
whats dissociated nystagmus?
when the amplitude of the osscilations are different in the two eyes
whats disconjugate nystagmus?
when the direction of the nystagmus is different in the 2 eyes
when does congenital nystagmus appear?
first few months of life
when conditions are seen w congenital nystagmus
lebers congenital amaurosis
what excentuates the nystagmus in congenital nystagmus?
also they do not have oscillopsia (sensation that the world is moving)
ddx of square wave jerks
see saw nystagmus localizes to...
upbeat nystagmus localizes to
downbeat nystagmus localizes to
convergenct-retraction nystagmus localizes to...
opsoclonus localizes to...and can be associated with....
ass w neuroblastoma or scc lung in adults
ocular bobbing- downward dropping of eyes then slowly float back up localized to .... prognosis is...
destructive lesion of pons
poor neurologic prognosis
how do you work up monocular nystagmus in a kid?
image! possible ON glioma
whats another name for opsoclonus?
where does rebound nystagmus localize to?