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Match List I with List II and select the correct answer using the code

June 1, 2025 by rawan239

Match List I with List II and select the correct answer using the code given below the Lists:

List I (Disease)
A. Hypermetropia
B. Presbyopia
C. Myopia
D. Cataract

List II (Remedy)
1. Concave lens
2. Bifocal lens
3. Surgery
4. Convex lens

A-4, B-2, C-1, D-3

A-4, B-1, C-2, D-3

A-3, B-1, C-2, D-4

A-3, B-2, C-1, D-2

This question was previously asked in

UPSC NDA-1 – 2017

Download PDF Attempt Online

This question requires matching common eye diseases/conditions with their standard remedies. Hypermetropia (farsightedness) is corrected with convex lenses. Presbyopia (age-related difficulty with near vision) is often managed with bifocal or progressive lenses. Myopia (nearsightedness) is corrected with concave lenses. Cataracts, which involve clouding of the eye’s lens, are primarily treated by surgical removal of the clouded lens and replacement with an artificial one. Thus, the correct matches are A-4, B-2, C-1, D-3.

Different refractive errors require specific types of corrective lenses based on how they affect the focusing of light on the retina. Cataracts are a structural issue requiring surgical intervention.

Concave lenses diverge light rays before they enter the eye (used for myopia). Convex lenses converge light rays (used for hypermetropia and presbyopia/reading). Bifocal lenses have different focal lengths in the upper and lower parts, typically for distance and near vision, respectively.

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