Oculomotor Dysfuntion Flashcards Preview

Neuro-Optometric Rehab > Oculomotor Dysfuntion > Flashcards

Flashcards in Oculomotor Dysfuntion Deck (35):
1

Which oculomotor test is used to differentiate between automaticity problems and oculomotor dysfunctions?

DEM

2

What are the three oculomotor skills?

Fixations
Pursuits
Saccades

3

While doing the readalyzer, the patient obtains 60% correct responses on the comprehension. What should be done next?

70% comprehension is required, so repeat the test

4

While doing the Readalyzer, the patient obtains 90% correct responses on the comprehension, and 30% in reliability. What should be done next?

Poor reliability indicates that something was wrong with the test, so redo it

5

While doing the Readalyzer, the patient obtains 50% correct responses on comprehension. What should be done?

Repeat the test using a lower grade level, or the same level with an easier paragraph

6

During SCCO pursuits, a patient loses fixation 2 times. What would the score be?

2+

7

During NSUCO pursuits, a patient is able to complete one rotation, and has three fixation loses, plus slight head/body movement less than 50% of the time. What would the score be?

3/3/4

8

What does DEM type II performance indicate?

Increased horizontal time with normal or close to normal time in the vertical test
Ratio will be higher than expected in this case

9

What does DEM type I indicate?

Average or normal performance

10

What does DEM type IV indicate?

Problems with automaticity and oculomotor dysfunction
It is a combination of type II and III

11

What are the diagnostic factors for oculomotor dysfunctions?

Reduced accuracy of ocular pursuits/saccades
Difficulty separating head/body and eye movements
Difficulty sustaining adequate pursuit or saccadic eye movement under cognitive demands
Inability to follow targets in proper sequence
Need for tactile/kinesthetic reinforcement while performing ocular motor activities
Inability to adequately sustain fixation/errratic fixations
Increased time required to perform tasks dependent upon saccadic eye movements

12

When is the Readalyzer/visagraph indicated?

Evaluate reading skill
Monitor reading skill development
Check that reading skill goals have been achieved
To measure reading parameters like reading speed, regressions, and fixation duration

13

What symptoms are related to oculomotor dysfunctions?

Loss of place
Omission of words
Difficulty tracking
Poor academic performance
Reduce efficiency and productivity
Poor attention span
Muscular incoordination
Vertigo
Motion Sickness

14

Increased horizontal time and normal vertical time in DEM indicates what?

Type II

15

Name at least 3 drugs that can cause oculomotor dysfunction.

Carbamazepine
Diazepam
Methadon
Chlordecone
Lithium
Phenytoin

16

List 3 signs and symptoms of oculomotor dysfunction.

Loss of place/omission of words when reading
Difficulty tracking objects
Poor academic performance
Reduced efficiency and productivity
Poor attention span
Muscular incoordination
Vertigo
Motion sickness

17

What are the grades for SCCO pursuits?

4+ smooth and accurate
3+ one loss of fixation
2+ two losses of fixation
1+ three losses of fixation

18

Describe the SCCO test for pursuits.

Patient follows fixation target from left to right, up and down, and in circles

19

What are the grades for SCCO saccades?

4+ smooth and accurate
3+ slight over/undershooting
2+ large over/undershooting
1+ unable to do the task, or increased latency

20

Describe the SCCO test for saccades.

The pt is asked to look from one point to another 10 times. Targets are 10 cm apart

21

What three areas of performance does NSUCO test?

Ability
Accuracy
Movement

22

What are the grades for NSUCO saccades?

5 completes5 roundtrips
4 completes 4
3 completes 3
2 completes 2
1 completes less than 2

23

What are the grades for NSUCO saccade accuracy?

5 no over/undershooting
4 intermittent slight over/undershooting less than 50% of the time
3 constnce slight over/undershooting more than 50% of the time
2 moderate over/undershooting one or more times
1 large over/undershooting one or more times

24

What is the NSUCO grading system for head and body movement?

5 no movement of the head or body
4 slight movement of the head or body less than 50% of the time
3 slight movement of the head or body more than 50% of the time
2 Moderate movement of the head or body at any time
1 no movement of the head or body

25

What is the NSUCO Pursuits grading system for ability?

5 completes 2 rotations each direction
4 completes two rotations in one direction, but less than two rotations in the other direction
3 completes one rotation in either direction, but not two rotations
2 compleste 1/2 rotation in either direction
1 cannot complete 1/2 rotation in either direction

26

What is the NSUCO pursuits accuracy grading system?

5 no refixations
4 refixations 2 times or fewer
3 three-four refixations
2 five -10 refixations
1 No attempt to follow the target, or requires greater than 10 fixations

27

What is the NSUCO pursuits head/body movement grading system?

5 no movement
4 slight movement of the head or body less than 50% of the time
3 slight movement of the head or body more than 50% of the time
2 moderate movement of the head or body at any time
1 large movement of the head or body at any time

28

What are the four scores of the DEM?

Vertical time
Horizontal (adjusted) time
Ratio
Errors

29

A below-expected score on DEM ratio indicates a deficiency of oculomotor skill, and is supportive of a diagnosis of what?

Oculomotor dysfunction

30

A below-expected vertical time on the DEM represents a deficiency in what?

The ability to rapidly name aloud printed numbers, or RAN

31

Describe a DEM type I patient

Average performance in all aspects

32

What signifies a DEM type II patient?

Abnormally increased horizontal time, with normal vertical time. Will yield a higher ratio than expected

33

What would be the DEM results of a type III patient?

Higher than normal vertical and horizontal time, but normal ratio score

34

What problem does a DEM type III patient have?

A difficulty in number naming

35

What is a DEM type IV patient?

Combo of types II & III