Eye Quiz
Preview:
Afterimages are caused by…
A. the blind spot.
B. fatigue in the cones.
C. not enough vitreous humor.
D. a misshapen lens.
Which of the following activities would be dangerous for someone with poor depth perception?
A. Driving a car
B. Blinking
C. Discerning between two similar colors
D. Reading a sign that’s far away
If you had your lens removed, what would you see?
A. Everything would be extremely blurry.
B. Nothing; you would be blind.
C. Everything would be in black and white.
D. Everything would be normal, but the colors would be inverted (flipped).
Which of the following parts of the eye is NOT transparent (clear)?
A. The lens
B. The cornea
C. The vitreous humor
D. The sclera
Someone with 20/10 vision has…
A. much worse vision than an average person.
B. much better vision than an average person.
C. the same vision as an average person.
D. astigmatism.
Max has a genetic defect in some of his cone cells. Therefore, Max has which problem with his vision?
A. Max is hyperopic (far-sighted).
B. Max is color-blind.
C. Max has astigmatism.
D. Max has no depth perception.
Which of the following keeps the cornea in place?
A. the aqueous humor
B. the vitreous humor
C. the muscles surrounding the eye
D. the eyelid
A misshapen cornea or lens might result in…
A. astigmatism.
B. color-blindness.
C. lack of peripheral vision.
D. lack of depth perception.
Which part of the eye lays flat against the back of the eye and translates light signals into action potentials?
A. the optic nerve
B. the retina
C. the sclera
D. the lens
A person with only one eye would probably have bad…
A. depth perception.
B. astigmatism.
C. accuity.
D. myopia.
Hyperopia (far-sightedness) occurs when the eye is…
A. missing.
B. too short.
C. too long.
D. missing its rods.
Seeing movement in your peripheral vision is primarily caused by your…
A. lens.
B. cones.
C. rods.
D. iris.
Optical illusions are caused by a mismatch between what the eye sees and…
A. how light is refracted onto the retina.
B. how the brain interprets the image.
C. how fast the optic nerve carries the image.
D. the shape of the lens.
Which of the following is good at seeing movement or light, but not color or detail?
A. rods
B. cones
C. neurons
D. lenses
Which of the following is primarily responsible for refracting light?
A. The sclera
B. The lens
C. The aqueous humor
D. The retina