Glaucoma: Haab's striae: 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 · Glaucoma: Haab's striae

Sample item

Which statement about Haab's striae is correct?

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

The answer and the reasoning

B. They are horizontal breaks in Descemet's membrane in buphthalmos

In congenital glaucoma, the stretched cornea develops tears in Descemet's membrane seen as horizontal or concentric lines. They differ from Vogt's striae, which are stress lines in keratoconus.

Option by option

  • A. They are lines of iron deposition in keratoconus

    Fleischer's ring is the iron line of keratoconus.

  • B. They are horizontal breaks in Descemet's membrane in buphthalmos (correct)

    Correct. They are ruptures in Descemet's membrane.

  • C. They are lipid lines in arcus

    Arcus is a peripheral lipid ring.

  • D. They are vertical folds of Bowman's layer

    Bowman's layer folds are not Haab's striae.

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, They are horizontal breaks in Descemet's membrane in buphthalmos. In congenital glaucoma, the stretched cornea develops tears in Descemet's membrane seen as horizontal or concentric lines.

Why is "They are lines of iron deposition in keratoconus" not the answer?

Fleischer's ring is the iron line of keratoconus.

Why is "They are lipid lines in arcus" not the answer?

Arcus is a peripheral lipid ring.

Why is "They are vertical folds of Bowman's layer" not the answer?

Bowman's layer folds are not Haab's striae.

What concept does this question test?

It tests Glaucoma: Haab's striae in Ophthalmology. They differ from Vogt's striae, which are stress lines in keratoconus.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. 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 Glaucoma: Haab's striae?

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.