Community ophthalmology: trachoma grading: 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 · Community ophthalmology: trachoma grading

Sample item

In the WHO simplified trachoma grading, which sign is defined as five or more follicles of at least 0.5 mm in the upper tarsal conjunctiva?

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

The answer and the reasoning

D. TF (trachomatous inflammation, follicular)

The simplified system includes TF, TI, TS, TT (trichiasis) and CO. TI is pronounced inflammatory thickening obscuring more than half the deep tarsal vessels, and TF in children aged 1 to 9 years is used to define the need for mass treatment.

Option by option

  • A. TI (trachomatous inflammation, intense)

    TI is thickening hiding the vessels.

  • B. TS (trachomatous scarring)

    TS is conjunctival scarring.

  • C. CO (corneal opacity)

    CO is corneal opacity over the pupil margin.

  • D. TF (trachomatous inflammation, follicular) (correct)

    Correct. TF is defined by follicles.

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 D, TF (trachomatous inflammation, follicular). The simplified system includes TF, TI, TS, TT (trichiasis) and CO.

Why is "TI (trachomatous inflammation, intense)" not the answer?

TI is thickening hiding the vessels.

Why is "TS (trachomatous scarring)" not the answer?

TS is conjunctival scarring.

Why is "CO (corneal opacity)" not the answer?

CO is corneal opacity over the pupil margin.

What concept does this question test?

It tests Community ophthalmology: trachoma grading in Ophthalmology. TI is pronounced inflammatory thickening obscuring more than half the deep tarsal vessels, and TF in children aged 1 to 9 years is used to define the need for mass treatment.

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 Community ophthalmology: trachoma grading?

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.