Oculomotor Examination, CTSIB

Question 1

What are Smooth Pursuits?

Answer 1

Slow eye movements following a moving target

Question 2

What are Saccades?

Answer 2

Rapid movement of the eyes moving between two fixed points

Question 3

Abnormal Smooth Pursuits and Saccades may indicate what type of pathology?

Answer 3

Central Vestibular Pathology

Question 4

Is VOR affected in BPPV?

Answer 4

NO, VOR is intact in BPPV

Question 5

What is VOR and its Function?

Answer 5

Maintaining stable gaze while body/head is in movement

Question 6

What is a Retinal Slip?

Answer 6

Eyes lag behind, causing blurry vision with head or eye movement

Question 7

Condition 1

Answer 7

Vision: Eyes Open
Surface: Fixed

Disadvantaged System: NONE

Question 8

Condition 2

Answer 8

Vision: Eyes Closed
Surface: Fixed

Disadvantaged System: Vision

Question 9

Condition 3

Answer 9

Vision: Sway Referenced
Surface: Fixed

Disadvantaged System: Vision Incorrect

Question 10

Condition 4

Answer 10

Vision: Eyes Open
Surface: Unstable

Disadvantaged System: Somatosensory

Question 11

Condition 5

Answer 11

Vision: Eyes Closed
Surface: Unstable

Disadvantaged System: Somatosensory and Vision

Question 12

Condition 6

Answer 12

Vision: Sway Referenced
Surface: Unstable

Disadvantaged System: Somatosensory and Vision

Question 13

Order of Recruitment of the 3 Balance Systems?

Answer 13

Vision > Somatosensory > Vestibular

Question 14

If a Patient is Dependent on Vision, which condition will be the most difficult?

Answer 14

Condition 2, 3, 5, 6

Question 15

If a Patient is Dependent on Somatosensory, which condition will be the most difficult?

Answer 15

Condition 4, 5, 6

Question 16

If a Patient is Dependent on Vestibular, which condition will be the most difficult?

Answer 16

Condition 5, 6