Question

What type of lens is used to correct myopia (nearsightedness)?

• A. Convex lens
• B. Concave lens
• C. Cylindrical lens
• D. Bifocal lens

Hint:

{Myopia → Concave lens} {Hypermetropia → Convex lens}.

Answer 1

The Correct Option is B

Concept: Myopia (nearsightedness) is a vision defect in which a person can see nearby objects clearly but distant objects appear blurred. This occurs when the image of distant objects forms in front of the retina instead of on the retina. A concave lens (diverging lens) is used to correct this defect.
Step 1: Understanding how the concave lens corrects vision.
A concave lens diverges incoming light rays so that they appear to come from a point farther away. This adjustment allows the image to form correctly on the retina.
Step 2: Eliminating other options.

• Convex lens is used to correct hypermetropia (farsightedness).
• Cylindrical lens is used for astigmatism.
• Bifocal lenses correct both near and distant vision problems.

Thus, myopia is corrected using a concave lens.