Practice Questions Flashcards

1
Q

Neurological control of eye movements consist of a

A

Pulse and a step

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2
Q

The king decvick test can be administered by ___.

A

A parent

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3
Q

King devick is best administered when

A

There is a baseline prior to the accident to see the change

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4
Q

King devick testing can occur ___ after.

A

Months after suspected injury to evaluate recovery

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5
Q

In eye movements, the pulse is

A

Responsible for overcoming the viscosity of the orbit

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6
Q

What keeps the eye in the new position

A

Step

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7
Q

Command for lateral eye movements are initiated by

A

Contralateral FEFs

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8
Q

VOR has the ____ latency.

A

Shorter latency

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9
Q

Nystagmus can be only

A

Pursuit eye movements

Can also be only saccade movements

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10
Q

I missed my train that is moving from my left to my right. My nystagmus will

A
Be leftward (left beating/fast) 
Have a slow phase to the right
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11
Q

Eye movements are said to be made about an axis on

A

Listings plane

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12
Q

The center of rotation of eye movements is

A

Really not a single point

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13
Q

Center of rotation is point of ___ velocity during eye movement

A

Zero

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14
Q

Movement of only left eye in any direction is a

A

Duction

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15
Q

What EOM has toe closest insertion point

A

Medial rectus

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16
Q

EOM that passes through the trochlea

A

Superior oblique

17
Q

What muscles mostly elevate or depress the eye when reading

A

Inferior and superior obliques

18
Q

A purely down gaze places the eyes in a

A

Secondary position

19
Q

Unlike the SR and IR, the obliques

A

Elevate or depress when reading

20
Q

When the left eye is moving to the left what will be the agonist?

A

The LLR

21
Q

Antagonist muscles pull the eye

A

Away from desired position

22
Q

It is best if the eye movement recorder is

A

Not on the patient’s line of sight
Shows linearity over a large range
Can disregard head movements

23
Q

In recording eye movements, we know that recording can only be accurate if

A

We tailor the measuring device ti the type of eye movement being measured

24
Q

Most likely to use if measuring very small amplitude eye movement (seconds of arc) such as fixational eye movements.

A

Electro magnetic coil (has better resolution)

25
Q

Which are used in clinical settings to measure eye movements

A

Direct patient observation (most used)

And EOG

26
Q

EOG can be used to

A

Measure vertical eye movements

Measure in some clinics

27
Q

Infrared limbal reflection is

A

Not usually used to measure vertical eye movements

28
Q

Ramp is less than ___ more than ____

A

Less than a pulse more than a step

29
Q

3 types of eye movements

A

Pursuits, saccades, vergence

30
Q

To make a saccadic eye movement you need

A

A pulse followed by a step

31
Q

To make a saccadic eye movement the eyes must

A

Overcome the resistance within the orbit, then maintain the new position

32
Q

To make a pursuit eye movement, the eyes must

A

Slowly move from where they are now, to the new position

33
Q

A target is located 10 degrees to the left, The signal to the muscles will be

A

A VELOCITY signal to move the eye 10 degrees to the left