Visual Pathway - Part 2

Question 1

What is duction?

Answer 1

Movement in one eye

Question 2

What is version?

Answer 2

Simultaneous movement of both eyes in the same direction (i.e. at the same time)

Question 3

What is vergence?

Answer 3

Simultaneous movement of both eyes in the opposite direction

the transfer of eyes between near and distant objects.

Question 4

What is convergence?

Answer 4

Simultaneous adduction movement of eyes

Question 5

What are the two types of upward/downward movements of the eyes?

Answer 5

Supra/infraduction (only one eye)

Supra/infraversion (both eyes)

Question 6

What do you call movement to the right and left?

Answer 6

Right - dextroversion
(Right eye abducts as left eye adducts)

Left - levoversion
(Left eye abducts as right eye adducts)

Question 7

What do you call rotation of eye around the anterior posterior axis?

Answer 7

Torsion

Question 8

What do you call short fast bursts of eye movement?

Answer 8

Saccade

Question 9

What are the four types of saccade?

Answer 9

Reflex saccade
Scanning saccade
Predictive saccade
Memory-guided saccade

Question 10

Which type of saccade is for tracking objects?

Answer 10

Predictive saccade (you predict the motion of an animal when you set the camera to ‘motion mode’

Question 11

What do you call sustained slow eye movements?

Answer 11

Smooth pursuit