In myopia, light rays from far-off objects converge
In front of the retina
— Concept: This question tests your understanding of common refractive errors of the human eye, specifically myopia…Concept: This question tests your understanding of common refractive errors of the human eye, specifically myopia (nearsightedness).
Why (B) is correct: In myopia, the eyeball is typically too long, or the cornea/lens has too much refractive power. As a result, light rays from distant objects converge in front of the retina instead of directly on it. This causes distant objects to appear blurry.
Why other options are wrong:
- (A) Behind the retina: This describes hyperopia (farsightedness), where the eyeball is too short or the refractive power is insufficient.
- (C) On the retina: This is the condition of normal vision (emmetropia), where light rays focus perfectly on the retina.
- (D) In the retina: Light rays focus on the retina, not within its layers.
Common Mistake: Students often confuse the focusing points for myopia and hyperopia. Remember 'Myopia = Minus lens = In front' and 'Hyperopia = Plus lens = Behind'.
NEET Tip: Myopia is corrected using a concave lens (diverging lens) which spreads out the light rays slightly before they enter the eye, allowing them to focus correctly on the retina.
Correct Answer: (B)
In front of the retina