Control of Eye Movements

Question 1

Saccadic system is for fast or slow movements

is voluntary or involuntar

Answer 1

fast

voluntary

Question 2

Diplopia =

Answer 2

double vision; a neurologic issue

Question 3

what causes diplopia

Answer 3

image not resting of fovea of each eye, d/t msucle, NMJ, nerve or CNS disorder

Question 4

Blurred vision or decreased visual acquity could be

Answer 4

neorological or non-neurological

Question 5

Nystagmus is often d/t a defect of

Answer 5

slow eye movement system~~~ d/t impaired VOR

Question 6

Verticle nystagmus is always

while a horizontal /rotational nystagmus

Answer 6

CNS lesion

peripheral or CNS

Question 7

involuntary = keeps object on fovea during sustained head rotation

Answer 7

Optokinetic system:

Question 8

involuntary and coordinates eye/head movements to stabalize object on fovea

Answer 8

Vestibular system:

Question 9

Slow eye movements have 3 parts:

Answer 9

Smooth: voluntary
Vestibulo-ocular; involuntary
optikokinetics; involuntary