Cornea: layers: 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: layers

Sample item

After a deep corneal injury, which layer is secreted by the endothelium and can regenerate?

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

The answer and the reasoning

A. Descemet's membrane

Descemet's membrane is the basement membrane of the endothelium and can be re-laid after injury. Bowman's layer and the stroma heal by scarring, while the epithelium regenerates from limbal stem cells.

Option by option

  • A. Descemet's membrane (correct)

    Correct. It is the endothelial basement membrane and it regenerates.

  • B. Bowman's layer

    Bowman's layer does not regenerate and heals with scar.

  • C. Corneal epithelium

    The epithelium regenerates from limbal stem cells and is not secreted by the endothelium.

  • D. Corneal stroma

    The stroma repairs with fibrous scar tissue, not true regeneration.

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 A, Descemet's membrane. Descemet's membrane is the basement membrane of the endothelium and can be re-laid after injury.

Why is "Bowman's layer" not the answer?

Bowman's layer does not regenerate and heals with scar.

Why is "Corneal epithelium" not the answer?

The epithelium regenerates from limbal stem cells and is not secreted by the endothelium.

Why is "Corneal stroma" not the answer?

The stroma repairs with fibrous scar tissue, not true regeneration.

What concept does this question test?

It tests Cornea: layers in Ophthalmology. Bowman's layer and the stroma heal by scarring, while the epithelium regenerates from limbal stem cells.

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: layers?

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.