Complete the following statement: In the laser-based medical procedure known as photorefractive keratectomy (PRK), nearsightedness and farsightedness can be treated using the laser to
A)remove small amounts of tissue from the lens and change its curvature.
B)remove small amounts of tissue from the cornea and change its curvature.
C)change the index of refraction of the aqueous humor.
D)alter the fluid pressure within the eye.
E)stimulate unused rods and cones on the retina.

Question

Quizplus · Accepted Answer

In PRK, the laser is used to remove small amounts of tissue from the cornea and change its curvature. This helps to correct nearsightedness and farsightedness. The lens itself is not operated on during this procedure.

Complete the Following Statement: in the Laser-Based Medical Procedure Known