After Test 1

Question 1

Why do we need the ocular motility system?

Answer 1

To attain a clear and stable view of the environment

Question 2

What are the functional classes of eye movements?

Answer 2

Movements that direct the fovea to an object of interest

Movements that hold images steady on the retina

Question 3

What movements direct the fovea to an object of interest?

Answer 3

Saccades
Smooth Pursuits
Vergences

Question 4

What movements hold images steady on the retina?

Answer 4

Fixation
Vestibulocular reflex
Optokinetic reflex

Question 5

When does the VOR shut down, and the OKN kick in?

Answer 5

When there is a constant spin or speed

Question 6

What are the monocular directions of ocular movements?

Answer 6

Ductions

Question 7

What are the binocular directions of ocular movements?

Answer 7

Versions

Vergences

Question 8

In ductions, what movements take place on the Z-axis?

Answer 8

Abduction

Adduction

Question 9

In ductions, what movements take place on the Y-axis?

Answer 9

Elevation

Depression

Question 10

In ductions, what movements take place on the X-axis?

Answer 10

Incyclotorsion

Excyclotorsion

Question 11

What are the conjugate binocular eye movements?

Answer 11

Saccades
Smooth pursuits
VOR
PKN
Vergences

Question 12

Convergence takes place on which axis?

Answer 12

Z-axis

Question 13

Divergence takes place on which axis?

Answer 13

Z-axis