Astigmatism and Presbyopia

Question 1

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

Answer 1

Simple Myopic Astigmatism

Question 2

Two meridians are not perpendicular to each other

Answer 2

Irregular Astigmatism

Question 3

Both principal meridians are focused behind the retina

Answer 3

Compound Hyperopic Astigmatism

Question 4

The first one to produce distance test charts for astigmatism

Answer 4

John Green

Question 5

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

Answer 5

Astigmatism

Question 6

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

Answer 6

With-the-Rule Astigmatism

Question 7

Unequal curvature of the cornea

Answer 7

Corneal Astigmatism

Question 8

What does D-D-F stands for?

Answer 8

Donder’s-Duane-Fincham Theory

Question 9

Astigmatism that came from lens?

Answer 9

Lenticular Astigmatism

Question 10

The earliest stage of presbyopia and performs well in vision testing

Answer 10

Incipient Presbyopia

Question 11

Condition in which virtually no accommodative ability remains

Answer 11

Absolute Presbyopia

Question 12

Can stil be overcome by a hard or forced ciliary effort

Answer 12

Faculative Presbyopia

Question 13

Sum of the corneal astigmatism and residual astigmatism

Answer 13

Total Astigmatism

Question 14

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

Answer 14

Simple Astigmatism

Question 15

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

Answer 15

Mixed Astigmatism

Question 16

Loss of accommodation inside the eye

Answer 16

Presbyopia

Question 17

Loss of “auto-focus”

Answer 17

Presbyopia

Question 18

Improves near vision in emmetropic presbyopes

Answer 18

Corneal Inlays

Question 19

H-H-G Theory stands for?

Answer 19

Helmholtz-Hess-Gullstrand Theory

Question 20

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

Answer 20

Pre-mature Presbyopia

Question 21

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

Answer 21

Conductive Keratoplasty

Question 22

Distant vision remains unchanged

Answer 22

Presbyopia

Question 23

When the two principal meridians are perpendicular to each other

Answer 23

Regular Astigmatism

Question 24

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

Answer 24

Simple Hyperopic Astigmatism

Question 25

Both principal meridian infront of the retina

Answer 25

Compound Myopic Astigmatism

Question 26

Axes of the two eyes are not symmetrical

Answer 26

Asymmetrical Astigmatism

Question 27

Axes of the two eyes are symmetrical

Answer 27

Symmetrical Astigmatism

Question 28

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

Answer 28

Astigmatism

Question 29

The medical science of symptoms.

Answer 29

Symptomatology

Question 30

Small scale snellen's chart

Answer 30

Near Chart VA