Question

Dr. Ngai just turned 40. To celebrate the beginning of his tenure in middle-age he went to the

optometrist and had his vision checked. To Dr. Ngai's surprise the optometrist informed him he suffers
from presbyopia, which is __________
a. a loss of elasticity in the cornea that reduces the ability to see far away.
b. a loss of elasticity in the lens that reduces the ability to see close up.
c. a loss of elasticity in the iris that reduces the ability of the pupil to dilate and contract.
d. a clouding of the lens that can lead to blindness.

Answer 1

Presbyopia is a vision problem associated with aging that causes a loss of ability to focus on close objects. It is caused by a loss of elasticity in the lens, and is usually corrected with the use of corrective lenses.

Step-by-step explanation:

Presbyopia is a vision problem associated with aging in which the eye gradually loses its ability to focus on close objects. It is caused by a loss of elasticity in the lens that reduces the eye's ability to change shape and focus on nearby objects.

For Dr. Ngai, his surprise at being diagnosed with presbyopia means that he will need corrective lenses to help him see close up. Surgical procedures for presbyopia have not been as successful as those for nearsightedness and farsightedness, so corrective lenses are typically recommended.