Retina: ischaemic CRVO: 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: ischaemic CRVO

Sample item

A patient with CRVO has an RAPD, extensive retinal haemorrhages, cotton wool spots and more than 10 disc areas of capillary non-perfusion. What is the major risk in the following 3 months?

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

The answer and the reasoning

C. Neovascular glaucoma (100-day glaucoma)

Ischaemic CRVO has poor visual acuity, an afferent pupillary defect and widespread non-perfusion, with a high risk of iris neovascularisation causing neovascular glaucoma at about 3 months. Treatment is anti-VEGF with panretinal photocoagulation. Regular gonioscopy is needed.

Option by option

  • A. Acute angle closure from shallow chamber

    Angle closure from a shallow chamber is not the mechanism.

  • B. Corneal ulceration

    Corneal ulceration is not a typical complication.

  • C. Neovascular glaucoma (100-day glaucoma) (correct)

    Correct. Neovascular glaucoma occurs at about 100 days.

  • D. Retinal tear

    Retinal tear is not a 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 C, Neovascular glaucoma (100-day glaucoma). Ischaemic CRVO has poor visual acuity, an afferent pupillary defect and widespread non-perfusion, with a high risk of iris neovascularisation causing neovascular glaucoma at about 3 months.

Why is "Acute angle closure from shallow chamber" not the answer?

Angle closure from a shallow chamber is not the mechanism.

Why is "Corneal ulceration" not the answer?

Corneal ulceration is not a typical complication.

Why is "Retinal tear" not the answer?

Retinal tear is not a feature.

What concept does this question test?

It tests Retina: ischaemic CRVO in Ophthalmology. Treatment is anti-VEGF with panretinal photocoagulation. Regular gonioscopy is needed.

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: ischaemic CRVO?

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.