Retina: stages of ROP: 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 · Retina: stages of ROP

Sample item

In the international classification of ROP, which stage is characterised by a raised ridge with neovascular tufts (extraretinal fibrovascular proliferation)?

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

The answer and the reasoning

A. Stage 3

Stage 1 is a demarcation line, stage 2 a ridge, stage 3 a ridge with extraretinal fibrovascular proliferation, stage 4 partial retinal detachment and stage 5 total detachment. Plus disease means dilated, tortuous posterior vessels.

Option by option

  • A. Stage 3 (correct)

    Correct. Stage 3 has extraretinal neovascularisation.

  • B. Stage 2

    Stage 2 is a ridge without neovascular proliferation.

  • C. Stage 1

    Stage 1 is a flat demarcation line.

  • D. Stage 5

    Stage 5 is total retinal detachment.

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 A, Stage 3. Stage 1 is a demarcation line, stage 2 a ridge, stage 3 a ridge with extraretinal fibrovascular proliferation, stage 4 partial retinal detachment and stage 5 total detachment.

Why is "Stage 2" not the answer?

Stage 2 is a ridge without neovascular proliferation.

Why is "Stage 1" not the answer?

Stage 1 is a flat demarcation line.

Why is "Stage 5" not the answer?

Stage 5 is total retinal detachment.

What concept does this question test?

It tests Retina: stages of ROP in Ophthalmology. Plus disease means dilated, tortuous posterior vessels.

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 Retina: stages of ROP?

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.