Corneal Surgery Is Now Routinely Performed to Change the Shape

Multiple Choice

Corneal surgery is now routinely performed to change the shape of the cornea and improve vision.Why is this surgery beneficial?

A) improves the circulation of nutrients to the eye
B) improves the focusing of light onto the retina
C) decreases the amount of light entering the eye
D) increases the sensitivity of the photoreceptors
E) decreases the pressure in the eye