Ocular motility: 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 · Ocular motility

Sample item

Which nerve palsy produces a down-and-out eye with ptosis?

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

The answer and the reasoning

B. Oculomotor palsy

Third-nerve palsy weakens most extraocular muscles and levator palpebrae, leaving lateral rectus and superior oblique actions relatively unopposed.

Option by option

  • A. Abducens palsy

    Sixth palsy prevents abduction.

  • B. Oculomotor palsy (correct)

    Correct: third-nerve palsy produces ptosis and down-out position.

  • C. Trochlear palsy

    Fourth palsy impairs depression in adduction.

  • D. Facial palsy

    Facial palsy affects closure not globe position.

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 B, Oculomotor palsy. Third-nerve palsy weakens most extraocular muscles and levator palpebrae, leaving lateral rectus and superior oblique actions relatively unopposed.

Why is "Abducens palsy" not the answer?

Sixth palsy prevents abduction.

Why is "Trochlear palsy" not the answer?

Fourth palsy impairs depression in adduction.

Why is "Facial palsy" not the answer?

Facial palsy affects closure not globe position.

What concept does this question test?

It tests Ocular motility in Ophthalmology. The correct option holds because: Correct: third-nerve palsy produces ptosis and down-out position.

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 Ocular motility?

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.