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Primary Eye and Vision Care > Astigmatism and Presbyopia > Flashcards

Astigmatism and Presbyopia Flashcards

1
Q

When one of the principal meridian is focused on the retina and behind the retina

A

Simple Myopic Astigmatism

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2
Q

Two meridians are not perpendicular to each other

A

Irregular Astigmatism

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3
Q

Both principal meridians are focused behind the retina

A

Compound Hyperopic Astigmatism

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4
Q

The first one to produce distance test charts for astigmatism

A

John Green

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5
Q

Refractive condition in which a variation of power exists in different meridians

A

Astigmatism

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6
Q

Common form of astigmatism that causes the cornea to be oblong shaped with high refractive power in the vertical meridian

A

With-the-Rule Astigmatism

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7
Q

Unequal curvature of the cornea

A

Corneal Astigmatism

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8
Q

What does D-D-F stands for?

A

Donder’s-Duane-Fincham Theory

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9
Q

Astigmatism that came from lens?

A

Lenticular Astigmatism

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10
Q

The earliest stage of presbyopia and performs well in vision testing

A

Incipient Presbyopia

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11
Q

Condition in which virtually no accommodative ability remains

A

Absolute Presbyopia

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12
Q

Can stil be overcome by a hard or forced ciliary effort

A

Faculative Presbyopia

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13
Q

Sum of the corneal astigmatism and residual astigmatism

A

Total Astigmatism

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14
Q

One of the principal meridian is focused on the retina and the other is not focused on the retina

A

Simple Astigmatism

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15
Q

Accommodation is paralyzed, one meridian tends to focus is behind the retina and in front of the retina

A

Mixed Astigmatism

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16
Q

Loss of accommodation inside the eye

A

Presbyopia

17
Q

Loss of “auto-focus”

A

Presbyopia

18
Q

Improves near vision in emmetropic presbyopes

A

Corneal Inlays

19
Q

H-H-G Theory stands for?

A

Helmholtz-Hess-Gullstrand Theory

20
Q

Accommodative ability becomes insufficient for patient’s usual near vision tasks at an earlier age than expected.

A

Pre-mature Presbyopia

21
Q

Touches the cornea with High Radiofrequency and by collagen shrinkage reshapes the cornea

A

Conductive Keratoplasty

22
Q

Distant vision remains unchanged

A

Presbyopia

23
Q

When the two principal meridians are perpendicular to each other

A

Regular Astigmatism

24
Q

Principal meridians is focused behind the retina and the other is focused on the retina

A

Simple Hyperopic Astigmatism

25
Q

Both principal meridian infront of the retina

A

Compound Myopic Astigmatism

26
Q

Axes of the two eyes are not symmetrical

A

Asymmetrical Astigmatism

27
Q

Axes of the two eyes are symmetrical

A

Symmetrical Astigmatism

28
Q

Parallel rays of light enter the eye and do not come to a single point focus on or near the retina

A

Astigmatism

29
Q

The medical science of symptoms.

A

Symptomatology

30
Q

Small scale snellen’s chart

A

Near Chart VA

Primary Eye and Vision Care (4 decks)

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