Quiz 1

Question 1

More than 2/3 of the eye’s refractive power is due to the:

Answer 1

A. cornea *
B. crystalline lens
C. aqueous/vitreous
D. retina

Question 2

The average power of an eye in total is 43.00 Diopters.

Answer 2

True

False *

Question 3

To see clearly, the eye’s optical system must form a point focus on the optic nerve of the retina.

Answer 3

True

False *

Question 4

The ability of the eye to change its shape to focus at near is known as:

Answer 4

A. refractive error
B. myopia
C. accommodation *
D. squinting

Question 5

All of the following are associated with hyperopia except:

Answer 5

A. eyeball too small
B. corrected with plus lenses
C. light from distance point will come to a focus behind the retina
D. distance between the lens and retina is too great *

Question 6

The Crystalline Lens has 2 converging minus power surfaces

Answer 6

True

False *

Question 7

The main function of the Choroid is:

Answer 7

A. Nourishment *
B. Muscular
C. Protection
D. Cosmetic

Question 8

The main function of the Sclera is:

Answer 8

A. Nourishment
B. Muscular
C. Protection *
D. Cosmetic

Question 9

The Fovea Centralis (macula) contains the highest percentage of cones in the retina.

Answer 9

True *

False

Question 10

The “Human Seeing System consists of 2 sets of lenses, 2 sensing devices and 1 brain and is used to describe how we see.

Answer 10

True *

False