Cornea: keratoconus signs: 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: keratoconus signs

Sample item

A young man has progressive myopic astigmatism, scissoring reflex on retinoscopy and a V-shaped indentation of the lower lid on downgaze. What is the diagnosis?

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

The answer and the reasoning

C. Keratoconus

Munson's sign, Fleischer's ring, Vogt's striae and scissoring reflex all point to keratoconus. It is associated with atopy, eye rubbing, Down syndrome and Marfan syndrome.

Option by option

  • A. Fuchs dystrophy

    Fuchs dystrophy is an endothelial disease of the elderly.

  • B. Keratoglobus

    Keratoglobus is a globular generalised thinning and is rarer.

  • C. Keratoconus (correct)

    Correct. These are classic keratoconus signs.

  • D. Pellucid marginal degeneration

    Pellucid degeneration shows inferior peripheral thinning with a clear central zone.

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 C, Keratoconus. Munson's sign, Fleischer's ring, Vogt's striae and scissoring reflex all point to keratoconus.

Why is "Fuchs dystrophy" not the answer?

Fuchs dystrophy is an endothelial disease of the elderly.

Why is "Keratoglobus" not the answer?

Keratoglobus is a globular generalised thinning and is rarer.

Why is "Pellucid marginal degeneration" not the answer?

Pellucid degeneration shows inferior peripheral thinning with a clear central zone.

What concept does this question test?

It tests Cornea: keratoconus signs in Ophthalmology. It is associated with atopy, eye rubbing, Down syndrome and Marfan syndrome.

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: keratoconus signs?

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.