Refraction: retinoscopy: 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: retinoscopy

Sample item

During retinoscopy with a plane mirror, the reflex moves in the same direction as the mirror. What does this indicate at the neutralising point?

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

The answer and the reasoning

B. Hypermetropia, emmetropia or myopia less than the working distance dioptres

With movement indicates the far point lies behind the observer, so it signifies hypermetropia, emmetropia or low myopia. Against movement means myopia exceeding the dioptric working distance.

Option by option

  • A. Myopia more than the working distance dioptres

    Against movement indicates higher myopia.

  • B. Hypermetropia, emmetropia or myopia less than the working distance dioptres (correct)

    Correct. With movement means a far point behind the examiner.

  • C. Media opacity

    Opacities cause a dull reflex.

  • D. Astigmatism only

    Astigmatism shows an oblique or broken streak.

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.

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Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is B, Hypermetropia, emmetropia or myopia less than the working distance dioptres. With movement indicates the far point lies behind the observer, so it signifies hypermetropia, emmetropia or low myopia.

Why is "Myopia more than the working distance dioptres" not the answer?

Against movement indicates higher myopia.

Why is "Media opacity" not the answer?

Opacities cause a dull reflex.

Why is "Astigmatism only" not the answer?

Astigmatism shows an oblique or broken streak.

What concept does this question test?

It tests Refraction: retinoscopy in Ophthalmology. Against movement means myopia exceeding the dioptric working distance.

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: retinoscopy?

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.