Multiple Choice
Optometrists, who help patients with their vision problems, know that certain types of repetitive use of the muscles around the lens of the eye can ʺtrainʺ the lens to become flatter than normal. This often occurs in truck drivers, sailors, and other people who focus on the horizon or at great distances for long periods of time. What would be the consequence of this on the eye over a long time period?
A) Complete blindness
B) Color-deficiency
C) Farsightedness
D) Nearsightedness
Correct Answer:

Verified
Correct Answer:
Verified
Q21: The receptor cells affected by light rays
Q22: When light energy hits a photopigment, the
Q23: Select the correct path through which sound
Q24: Receptor potentials may generate action potentials in
Q25: Olfactory receptors are located in the_ cavity.
Q27: Which of the following chemical compounds stimulate
Q28: How many semicircular canals are in the
Q29: In a person who is nearsighted, the<br>A)
Q30: Any cell that generates an electrical signal
Q31: In humans, when the eye focuses on