Trauma: blunt injury: 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 · Trauma: blunt injury

Sample item

A man struck on the eye by a fist has an inability to see in the central field with a whitish retinal haze. What is this?

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

The answer and the reasoning

C. Commotio retinae (Berlin's oedema)

Commotio retinae is transient retinal whitening after blunt trauma that usually resolves, though macular damage may cause permanent loss. Other effects of blunt trauma include angle recession and Vossius ring.

Option by option

  • A. Central retinal artery occlusion

    CRAO shows a cherry red spot without trauma context.

  • B. Retinal detachment

    Detachment shows a tear and detached retina.

  • C. Commotio retinae (Berlin's oedema) (correct)

    Correct. Retinal whitening after blunt injury is Berlin oedema.

  • D. Papilloedema

    Papilloedema affects the disc.

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.

More Ophthalmology questions

Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is C, Commotio retinae (Berlin's oedema). Commotio retinae is transient retinal whitening after blunt trauma that usually resolves, though macular damage may cause permanent loss.

Why is "Central retinal artery occlusion" not the answer?

CRAO shows a cherry red spot without trauma context.

Why is "Retinal detachment" not the answer?

Detachment shows a tear and detached retina.

Why is "Papilloedema" not the answer?

Papilloedema affects the disc.

What concept does this question test?

It tests Trauma: blunt injury in Ophthalmology. Other effects of blunt trauma include angle recession and Vossius ring.

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 Trauma: blunt injury?

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.