Deck 24: Special Senses: Visual Tests and Experiments

Question 1

Binocular vision .

A)provides a panoramic field of view
B)allows an animal to see in two different directions
C)is present in horses and rabbits
D)provides depth perception (three- dimensional vision)

Answer 1

D

Question 2

The results of a test of visual acuity are 20/15. This individual _.

A)has normal vision
B)has better than normal vision
C)needs glasses for farsightedness
D)needs glasses for nearsightedness

Answer 2

B

Question 3

The image formed on the retina as light passes through the eye is reversed left to right, inverted, and smaller than the object. It is called a _ image.

A)refracted
B)real
C)reversed

Answer 3

B

Question 4

Many older individuals develop presbyopia, a condition in which .

A)the lens loses elasticity and can no longer focus for distant vision, and visual acuity declines
B)the lens loses elasticity and can no longer focus for distant vision
C)the near point of accommodation becomes further away
D)visual acuity declines

Question 5

Color blindness is tested using .

A)Ishihara plates
B)a Snellen eye chart
C)sudden illumination of the retina
D)a chart of lines radiating out from a white circle

Question 6

Individuals who are nearsighted, or , see close objects clearly, but see distant objects as blurry.

A)myopic
B)emmetropic
C)hyperopic

Question 7

The normal, or , eye accommodates properly.

A)hyperopic
B)emmetropic
C)myopic

Question 8

This type of examination allows one to study the interior of the eyeball.

A)an ophthalmoscopic examination
B)visual observation
C)observation of the eyeball through a hand- held magnifying lens
D)an examination using a rheostat

Question 9

Astigmatism _ .

A)results from a slight elongation of the eyeball
B)results from irregular curvatures of the lens or cornea
C)literally means "old vision"
D)is a decline in visual acuity

Question 10

Testing of these reflexes can provide information about cranial nerves that carry autonomic fibers.

A)photopupillary
B)convergence
C)accommodation pupillary
D)photopupillary and accommodation pupillary

Question 11

This reflex involves extrinsic eye muscles, and is controlled by the somatic nervous system.

A)photopupillary
B)convergence
C)accommodation pupillary