LON-CAPA Vision Quiz

The Quiz

1. As we age, we lose the ability to focus on close objects. This is usually the result of

cataracts.
loss in lens elasticity due to the aging process.
too much reading in dim light.
too much reading of fine print.

2. Which causes the lens to change shape?

vestibular apparatus
ciliary muscles
cataracts
basilar membrane

3. The technical term for the lens changing shape is

adaptation.
amplification.
accommodation.
equuilibrium.

4. Which receptor responds to light stimuli?

thermoreceptor
chemoreceptor
proprioceptor
photoreceptor

5. The hole in the iris is the

lens
cornea
pupil
optic nerve

6. Which receptors are responsible for night vision?

myoptic cells
olfactory cells
cones
rods

Correct the quiz.