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Ocular Anatomy & Physiology > Visual Fields > Flashcards

Visual Fields Flashcards

1
Q

Horizontal Monocular Field of view (Degrees)

A

150

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2
Q

Superior Monocular field of view (Degrees)

A

60

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3
Q

Inferior monocular field of view (Degrees)

A

50

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4
Q

Central Binocular field of view (Degrees)

A

120

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5
Q

Scatoma

A

Area where vision is partially or fully reduced

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6
Q

Ipsilateral

A

VF defect on same side of lesion

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7
Q

Contralateral

A

VF defect on opposite side compared to lesion

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8
Q

Homonymous

A

Affecting same part of the visual field of each eye

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9
Q

Hemianopia

A

Half of the visual field had a defect

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10
Q

Quadrantanopia

A

Quarter of visual field has a defect

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11
Q

Types of VF program

A

30-2
24-2
10-2
Esterman
Full field 120

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12
Q

Reliability indices (Components of Humphreys)

A
  • False Positive (Trigger happy)
  • False negative (Stimulus is shown in area px has already seen but was missed this time)
  • Fixation Losses
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13
Q

Threshold Values (Components of Humphreys)

A
  • How bright was stimulus
  • Higher number = Dimmer light
  • Measured in dB
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14
Q

Greyscale map (Components of Humphreys)

A

Visual presentation of raw data (Black area is blind spot)

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15
Q

Numerical total deviation map (Components of Humphreys)

A

Total dB deviations from the norms for that age

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16
Q

Numerical pattern deviation map (Components of Humphreys)

A

Corrects for any overall reduction in vision

17
Q

Total deviation probability map (Components of Humphreys)

A

Visual representation of probability of deviations outside the age norms; Taking the above numerical data and representing it in a map with probability

18
Q

Pattern deviation probability map (Components of Humphreys)

A

Visual representation of the probability of the reduction in vision after correcting for any overall reduction

19
Q

Probability symbols (Components of Humphreys)

A

Darker the square the more likely the defect is not normal

Ocular Anatomy & Physiology (7 decks)

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