Retina: branch retinal vein occlusion: 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: branch retinal vein occlusion

Sample item

A hypertensive 62-year-old has sudden blurring with sector retinal haemorrhages in the superotemporal quadrant. What is the site of the occlusion?

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

The answer and the reasoning

C. At an arteriovenous crossing

Branch retinal vein occlusion occurs at AV crossings where a sclerotic artery compresses the vein, most often superotemporally. Macular oedema is treated with intravitreal anti-VEGF agents and ischaemia with sectoral laser.

Option by option

  • A. At the lamina cribrosa

    CRVO occurs at the lamina cribrosa.

  • B. In the ophthalmic artery

    Ophthalmic artery occlusion affects the whole eye.

  • C. At an arteriovenous crossing (correct)

    Correct. A crossing site is typical.

  • D. In the cavernous sinus

    Cavernous sinus thrombosis does not cause this.

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 C, At an arteriovenous crossing. Branch retinal vein occlusion occurs at AV crossings where a sclerotic artery compresses the vein, most often superotemporally.

Why is "At the lamina cribrosa" not the answer?

CRVO occurs at the lamina cribrosa.

Why is "In the ophthalmic artery" not the answer?

Ophthalmic artery occlusion affects the whole eye.

Why is "In the cavernous sinus" not the answer?

Cavernous sinus thrombosis does not cause this.

What concept does this question test?

It tests Retina: branch retinal vein occlusion in Ophthalmology. Macular oedema is treated with intravitreal anti-VEGF agents and ischaemia with sectoral laser.

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 Retina: branch retinal vein occlusion?

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.