Refractive errors: practice question

A Ophthalmology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Ophthalmology · Refractive errors

Sample item

What optical problem is corrected by a concave lens?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. Myopia

A concave diverging lens moves the focal point backward onto the retina in myopia, where parallel light would otherwise focus in front of the retina because of excessive optical power or axial length.

Option by option

  • A. Astigmatism in every case

    Astigmatism requires cylindrical correction tailored to the axis.

  • B. Myopia (correct)

    Correct: concave lenses correct short-sightedness or myopia.

  • C. Hyperopia

    Hyperopia is commonly corrected with a convex converging lens.

  • D. Presbyopia only

    Presbyopia usually needs added converging power for near tasks.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Ophthalmology questions

Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is B, Myopia. A concave diverging lens moves the focal point backward onto the retina in myopia, where parallel light would otherwise focus in front of the retina because of excessive optical power or axial length.

Why is "Astigmatism in every case" not the answer?

Astigmatism requires cylindrical correction tailored to the axis.

Why is "Hyperopia" not the answer?

Hyperopia is commonly corrected with a convex converging lens.

Why is "Presbyopia only" not the answer?

Presbyopia usually needs added converging power for near tasks.

What concept does this question test?

It tests Refractive errors in Ophthalmology. The correct option holds because: Correct: concave lenses correct short-sightedness or myopia.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Refractive errors?

Group the red eye by what to examine and what the pupil does. Then use the flashcards and the other Ophthalmology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.