Non-Strabismic Conditions Flashcards

1
Q

Low AC/A Conditions

A

convergence insufficiency
divergence insufficiency
AC/A under 3:1

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2
Q

Convergence Insufficiency

A
receded NPC 
low PFV- low BO
fails + for BAF and NRA
Exo greater at near
low AC/A
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3
Q

Symptoms for Convergence Insufficiency

A

occur for reading/ near work

end of day

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4
Q

NPC for Convergence Insufficiency

A

repeated testing worstens results

recovery much different from break

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5
Q

Divergence Insufficiency

A

greater eso at distance
decreased NFV- low BI
comitant/ norm versions

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6
Q

Divergence Insufficiency Symptoms

A

intermittent diplopia

nausea, dizziness, car sick, light sensitivity

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7
Q

Diff between Divergence Insufficiency and 6th N Palsy

A

6- sudden onset

non-commitant

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8
Q

Diff between Divergence Insufficiency and Divergence Paralysis

A

paralysis- sudden diplopia or headaches

esotropia at distance

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9
Q

Treatment for Low AC/A Conditions

Divergence Insufficiency and Convergence Insufficiency

A

prism

VT

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10
Q

High AC/A Conditions

A

Convergence Excess

Divergence Excess

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11
Q

Convergence Excess

A

Eso at near, ortho at distance
reduced NFV- low BI
diff minus

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12
Q

Divergence Excess

A

greater exo at distance with high AC/A
low BO at distance, low BI at near
can have tropia

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13
Q

Simulated Divergence Excess

A

same as true divergence excess testing but near and far phorias are same

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14
Q

Treating High AC/A Conditions

Convergence and Divergence Excess

A

correct refractive error and vertical deviations
correct imbalance between eyes with lenses
VT, Prism
Lenses

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