Refraction: 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 · Refraction

Sample item

What is anisometropia?

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

The answer and the reasoning

D. Different refractive power between eyes

Anisometropia is a clinically important difference in refractive error between the two eyes and can contribute to amblyopia in childhood.

Option by option

  • A. Eyelid infection

    Eyelid infection is commonly a hordeolum or blepharitis.

  • B. Lens opacity

    Lens opacity is a cataract.

  • C. Double vision

    Double vision is diplopia, often from alignment or neurologic issues.

  • D. Different refractive power between eyes (correct)

    Correct: anisometropia means unequal refractive error between eyes.

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 D, Different refractive power between eyes. Anisometropia is a clinically important difference in refractive error between the two eyes and can contribute to amblyopia in childhood.

Why is "Eyelid infection" not the answer?

Eyelid infection is commonly a hordeolum or blepharitis.

Why is "Lens opacity" not the answer?

Lens opacity is a cataract.

Why is "Double vision" not the answer?

Double vision is diplopia, often from alignment or neurologic issues.

What concept does this question test?

It tests Refraction in Ophthalmology. The correct option holds because: Correct: anisometropia means unequal refractive error between eyes.

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 Refraction?

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.