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Clinical Optometry > Vergences > Flashcards

Vergences Flashcards

1
Q

Expected horizontal vergence values for DISTANCE- BASE IN

A

X/7/4

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2
Q

Expected horizontal vergence values for DISTANCE- BASE OUT

A

9/19/10

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3
Q

Expected horizontal vergence values for NEAR - BASE IN

A

13/21/13

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4
Q

Expected horizontal vergence values for NEAR - BASE OUT

A

17/21/11

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5
Q

What vergence test is always done first?

A

Base Out

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6
Q

Base up is measuring which vergence

A

Infravergence

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7
Q

Base down is measuring which vergence

A

Supravergence

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8
Q

Instructions for horizontal vergence testing

A

Is the object a clear and single object? Let me know IF the object becomes blurry, splits and remains 2, or remains single and moves to your left or your right.

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9
Q

Recording vergence findings

A

Blur/break/recovery (horizontal) break/recovery (vertical)

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10
Q

Sheards criterion

A

For comfort, the compensating vergence should be 2x the demand (phoria) —use blur point of convergence, if no blur break point of convergence.

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11
Q

Compensating vergence of XP

A

bO

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12
Q

Compensating vergence of EP

A

BI

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13
Q

Compensating

A

Prism/vergence required to maintain single binocular vision

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14
Q

Neutralizing

A

Measuring prism or vergence

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15
Q

Fusion all vergence

A

Used to maintain single binocular vision (reflex or disparity vergence)

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16
Q

Vergence stimulated by retinal disparity

A

Fusional vergence

17
Q

Accommodative vergence

A

Convergence in response to accommodation-measured as the AC/A value

18
Q

Vergence stimulated by blur

A

Accommodative vergence

19
Q

Proximal vergence

A

Convergence of eyes due to awareness of a fixation object being nearby

20
Q

Tonic vergence

A

Vergence due solely to tonic innervatuon of EOMs (not measured clinically)

21
Q

Positive fusional vergence

A

Convergence/ BO vergence

22
Q

Negative fusional vergence

A

Divergence/BI vergence

Clinical Optometry (20 decks)

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