Glaucoma: normal tension: 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: normal tension

Sample item

Which feature is associated with normal tension glaucoma?

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

The answer and the reasoning

D. Disc haemorrhage and vascular dysregulation such as migraine or nocturnal hypotension

Normal tension glaucoma shows typical cupping and field loss with IOP in the statistical normal range. Disc haemorrhages, female sex, migraine and low blood pressure are linked, and lowering IOP by 30 percent is the treatment.

Option by option

  • A. Closed angle on gonioscopy

    The angle is open.

  • B. Corneal oedema

    Corneal oedema occurs in acute closure.

  • C. IOP persistently above 40 mmHg

    Pressure by definition is within the normal range.

  • D. Disc haemorrhage and vascular dysregulation such as migraine or nocturnal hypotension (correct)

    Correct. Vascular factors and disc haemorrhages feature.

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, Disc haemorrhage and vascular dysregulation such as migraine or nocturnal hypotension. Normal tension glaucoma shows typical cupping and field loss with IOP in the statistical normal range.

Why is "Closed angle on gonioscopy" not the answer?

The angle is open.

Why is "Corneal oedema" not the answer?

Corneal oedema occurs in acute closure.

Why is "IOP persistently above 40 mmHg" not the answer?

Pressure by definition is within the normal range.

What concept does this question test?

It tests Glaucoma: normal tension in Ophthalmology. Disc haemorrhages, female sex, migraine and low blood pressure are linked, and lowering IOP by 30 percent is the treatment.

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: normal tension?

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.