A person with cataracts was treated by surgically removing the lenses of his eyes. The type of glasses he should get to compensate for the removal of his lenses would be
A) concave lenses.
B) convex lenses.
C) glasses to compensate for astigmatism.

Question

Quizplus · Accepted Answer

Since the lenses of the eyes have been removed, the person will need an external lens to help focus light onto the retina. Convex lenses are designed to converge light rays and bring them into focus, which makes them the best choice for this situation. Concave lenses, on the other hand, are used to diverge light rays and spread them out. They would not be helpful in compensating for the removal of lenses. Glasses to compensate for astigmatism may be needed if the person has a pre-existing condition, but they do not need to be specifically chosen to compensate for the removal of lenses.

A Person with Cataracts Was Treated by Surgically Removing the Lenses