Nystagmus Flashcards
(44 cards)
What side does nystagmus beat to?
Neurally active side
Spontaneous Nystagmus
- Slow phase
VOR
Spontaneous Nystagmus
- Fast phase
Brainstem mediated saccade
The direction of the more neurally active side
Quick jump one way
Nystagmus is named after?
The fast phase
What is Hypofunction?
Lesion and increased firing rate
Nystagmus naming
- 1st degree
Only center
Nystagmus looking forward
Nystagmus naming
- 2nd degree
Center and L or R
Turn eyes to one direction and center
Nystagmus naming
- 3rd degree
Center and Left and Right
Nystagmus in all 3 directions
Direction changing nystagmus
Nystagmus occurs in different directions
Refer to neurologist
Red flag
Direction changing nystagmus
End range nystagmus
Bringing to end range
Nystagmus naming
- Fatiguing
Nystagmus eventally stops
Nystagmus naming
- Non-fatiguing
Never stops
*cutoff (Con’t for longer than 1 min)
Nystagmus naming
- Latency
Time between putting them in position and when nystagmus actually begins
Subjective description categories
Dizziness
Vertigo
Pre-syncope
Tinnitus
Oscillopsia
Depersonalization
Nausea
Diplopia
Dizziness
Generalized bucket
Vertigo
Sensation of movement when movement is not actually occuring
Pre-syncope
Decreased cerebral perfusion
Tinnitus
Sensation of noise or auditory hallucination when that noise is not actually occurring
Oscillopsia
Delay in vision when the head moves
Depersonalization
Sensation of not being in one’s self
Nasuea
Feeling of sickness with an inclination to vomit
Diplopia
Double vision in the vertical or horizontal plane
Vertigo commonly described as
Spinning, turning, pulling, sinking, floating, somersaulting, pushing