Monocular and Binocular Movements

Question 1

What are benefits of Binocular Vision?

Answer 1

Single Vision
Stereovision
Increase field of vision
Compensation for blind spot

Question 2

What is single vision?

Answer 2

no double

image from each eye

Question 3

What is stereovision?

Answer 3

depth perception

Question 4

What is placing the image at fovea?

Answer 4

Fixation

Question 5

What is merging 2 images into one?

single image

Answer 5

Fusion

Question 6

What is 2 images are perceived - 1 from each eye?

double vision

Answer 6

Diplopia

Question 7

What occurs when the brain will ignore one of the images in diplopia?

Answer 7

Suppression

Question 8

What is the term for lazy eye?

Answer 8

Amblyopia

Question 9

What is Amblyopia?

Answer 9

reduced best corrected visual acuity (rbcva). When the brain does not receive clear images during development

Question 10

What are the two Oculomotor Control?

Answer 10

Saccades

Smooth pursuits

Question 11

What is the FAST movement that keep the image in fovea?

- frontal lobe

Answer 11

Saccades

Question 12

What is the SLOW movement?

- parietal-occipital region

Answer 12

Smooth pursuits

Question 13

Is the duction movement monocular or binocular?

Answer 13

Monocular

Question 14

What is abduction?

Answer 14

They eye moves AWAY from the midline

Question 15

What is adduction?

Answer 15

Eyes looking closer to the midline

Question 16

What is Supraduction?

Answer 16

One eye looking up

Question 17

What is Infraduction?

Answer 17

One eye Looking down

Question 18

What is Intorsion?

Answer 18

Rolling medially

towards the nose

Question 19

What is Extorsion?

Answer 19

Rolling laterally

away from the nose

Question 20

What are versions?

Answer 20

Both eyes in the same direction

Question 21

What is Dextroversion?

Answer 21

both eyes looking RIGHT

Question 22

What is Levoversion?

Answer 22

both eyes looking LEFT

Question 23

What is Supraversion?

Answer 23

both eyes looking UP

Question 24

What is Infraversion?

Answer 24

both eyes looking DOWN

Question 25

What is vergence?

Answer 25

both eyes moving towards or away from each other

Question 26

What is convergence?

Answer 26

eyes rotate TOWARD each other to look at a close image

Question 27

Does the eyes look at a close image or a far image when they converge?

Answer 27

close image

Question 28

What is divergence?

Answer 28

eyes rotate AWAY from each other

Question 29

Does the eyes look at a close image or a far image when they diverge?

Answer 29

far image

Question 30

What is a deviation of the eyes that is controlled by fusion?

Answer 30

Heterophoria

Question 31

What is the ocular movement involving only one eye?

Answer 31

Duction

Question 32

What is both eyes move towards the midline to maintain or achieve a single image?

Answer 32

Convergence

Question 33

What is the perception of depth ; requires visual stimuli from both eyes?

Answer 33

Stereopsis

Question 34

What is the RAPID movement that directs the eyes towards a visual target?

Answer 34

Saccades

Question 35

What is the ability to perceive the relative distance of objects ; may occur monocularly or binocularly?

Answer 35

Depth Perception

Question 36

What is the upward movement of both eyes?

Answer 36

Supraversion

Question 37

What is a monocular cue for depth perception? as we move our head, closer objects move faster than distant objects.

Answer 37

Motion parallax

Question 38

What is a binocular movement of the eyes together in the same direction?

Answer 38

Versions

Question 39

What occurs when parallel lines are converging and diminishing in a distance?

Answer 39

Vergence

Question 40

What is the movement of both eyes to the right?

Answer 40

Dextroversion

Question 41

What is the movement of one eye downward?

Answer 41

Infraduction

Question 42

What is the movement of both eyes away from the midline in order to maintain or achieve a single image?

Answer 42

Divergence

Question 43

What is the movement of they eye towards the midline?

Answer 43

Adduction

Question 44

What is the upward movement of one eye?

Answer 44

Supraduction

Question 45

What is the movement of both eyes to the left?

Answer 45

Levoversion

Question 46

What is the constant deviation of the eyes that is not controlled?

Answer 46

Heterotropia

Question 47

What is the downward movement of both eyes?

Answer 47

Infraversion

Question 48

What occurs when the brain ignores the image from one eye in order to avoid double vision?

Answer 48

Suppression

Question 49

What is the lateral movement away from the midline?

Answer 49

Abduction