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Visual > Words: > Flashcards

Words: Flashcards

1
Q

Visual Acuity

A
  • Sharpness

- visual detail

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2
Q

Myopia

A
  • Near sighted

- image focused in front of retina

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3
Q

Hyperopia

A
  • far sightedness

- image focused on back of retina

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4
Q

Astigmatism

A

-cornea not a perfect shape

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5
Q

Snellen fraction far acuity #-

A

20 ft

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6
Q

Snellen fraction near acuity #

A

16 feet

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7
Q

Oculomotor function

A

Maintain foveation on a object

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8
Q

Fixation

A

Locate and maintain gaze of an object

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9
Q

Smooth pursuits

A

Ability to follow a image smoothly

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10
Q

Saccadic function

A

Ability to direct and coordinate movement quickly

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11
Q

Accommodation

A

Ability to change focus of eye

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12
Q

Specific cranial nerve lesions-

A

unable to maintain central position

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13
Q

Medial rectus is CN

A

III

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14
Q

Superior oblique is CN -

A

CN IV

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15
Q

Lateral rectus is CN

A

VI

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16
Q

Cranial nerve VI palsy:

A
  • damage to lateral rectus
  • unable to move eyes laterally
  • Horizontal diplopia for far vision– think #6 soccer going far
17
Q

CN IV palsy

A
  • damage to superior oblique
  • Unable to move eye up and down
  • Vertical dipolia for near vision
18
Q

Ptosis can be due to

A

Cranial nerve III palsy

19
Q

Cranial nerve III palsy

A
  • Unable to move eye up, medial, or down
  • ptosis
  • Diplopia for near vision
20
Q

Testing pursuits

A
  • test without glasses
  • H, X, O
  • test each eye separately then together
21
Q

Testing saccades:

A
  • with out without glasses
  • hold two different targets
  • direct client to look at which command
  • preformed in three fields- superior, inferior, or middle
22
Q

Which saccades is slightly weaker:

A

Superior

23
Q

Binocular complaints

A

-double vision

24
Q

Stereopsis

A

ability to perceive 3 dimensional depth

25
Q

Converge-

A

both eyes turn inward

26
Q

Divergence

A

both eyes turn outward

27
Q

Phoria

A

Tendency to point up, down, in and out

28
Q

Tropia

A

condition that eye faces in out up or down

29
Q

Eso

A

Medial deviation

30
Q

Exo

A

Lateral deviation

31
Q

Hyper

A

up deviation

32
Q

Hypo

A

down deviation

33
Q

Amblopia

A

Lazy eye

  • reduced vision, no correction with glasses
  • eye sees with blur
34
Q

Testing vergence: glasses on or off

A

On

35
Q

When testing vergence and eyes turn out unable to see double:

A

break point

36
Q

When target is single again when testing vergence:

A

Recovery

37
Q

Norms: Breakpoint should be:

Recovery point should be:

A

2-4 inch

6-8 inch

38
Q

Testing visual field

A

Have client look at nose

  • client says when they see one or two fingers
  • preformed in horizontal, vertical or diagonal plane
39
Q

Left temporal and right nasal may be:

A

left homonomoyus heminopsia

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