Squint: Brown syndrome: 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 · Squint: Brown syndrome

Sample item

A child has inability to elevate the right eye in adduction that improves in abduction, from a tight superior oblique tendon. What is the diagnosis?

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

The answer and the reasoning

B. Brown syndrome

Brown syndrome is restriction of the superior oblique tendon-trochlea complex, limiting elevation in adduction with a positive forced duction test. Many cases resolve spontaneously.

Option by option

  • A. Superior rectus palsy

    A superior rectus palsy gives limited elevation in abduction.

  • B. Brown syndrome (correct)

    Correct. Limited elevation in adduction defines it.

  • C. Inferior oblique palsy

    An inferior oblique palsy would not improve in abduction in this way.

  • D. Duane syndrome

    Duane is a horizontal restriction.

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 B, Brown syndrome. Brown syndrome is restriction of the superior oblique tendon-trochlea complex, limiting elevation in adduction with a positive forced duction test.

Why is "Superior rectus palsy" not the answer?

A superior rectus palsy gives limited elevation in abduction.

Why is "Inferior oblique palsy" not the answer?

An inferior oblique palsy would not improve in abduction in this way.

Why is "Duane syndrome" not the answer?

Duane is a horizontal restriction.

What concept does this question test?

It tests Squint: Brown syndrome in Ophthalmology. Many cases resolve spontaneously.

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 Squint: Brown syndrome?

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.