Cornea: 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 · Cornea

Sample item

What corneal finding is characteristic of keratoconus?

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

The answer and the reasoning

D. Progressive conical thinning and irregular astigmatism

Keratoconus causes progressive corneal thinning and ectasia, producing irregular astigmatism and distorted vision, often in adolescence or young adulthood.

Option by option

  • A. Fixed dilated pupil

    Fixed pupil is iris or nerve issue.

  • B. Painless subconjunctival bleed

    Subconjunctival bleed is superficial.

  • C. Diffuse retinal haemorrhages

    Retinal haemorrhages have vascular causes.

  • D. Progressive conical thinning and irregular astigmatism (correct)

    Correct: conical ectasia causes irregular refraction.

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, Progressive conical thinning and irregular astigmatism. Keratoconus causes progressive corneal thinning and ectasia, producing irregular astigmatism and distorted vision, often in adolescence or young adulthood.

Why is "Fixed dilated pupil" not the answer?

Fixed pupil is iris or nerve issue.

Why is "Painless subconjunctival bleed" not the answer?

Subconjunctival bleed is superficial.

Why is "Diffuse retinal haemorrhages" not the answer?

Retinal haemorrhages have vascular causes.

What concept does this question test?

It tests Cornea in Ophthalmology. The correct option holds because: Correct: conical ectasia causes irregular refraction.

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 Cornea?

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.