Lacrimal system: 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 · Lacrimal system

Sample item

What is a main role of tears?

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

The answer and the reasoning

D. Lubricate and protect ocular surface

Tears lubricate the cornea, provide antimicrobial and nutritional components, wash away debris, and maintain a smooth optical surface for vision.

Option by option

  • A. Increase eye pressure

    Tears do not intentionally raise intraocular pressure.

  • B. Focus light

    Cornea and lens focus light, not tears primarily.

  • C. Move eyelid muscles

    Eyelid muscles are moved by nerves and skeletal muscle.

  • D. Lubricate and protect ocular surface (correct)

    Correct: tears protect and lubricate the ocular surface.

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 D, Lubricate and protect ocular surface. Tears lubricate the cornea, provide antimicrobial and nutritional components, wash away debris, and maintain a smooth optical surface for vision.

Why is "Increase eye pressure" not the answer?

Tears do not intentionally raise intraocular pressure.

Why is "Focus light" not the answer?

Cornea and lens focus light, not tears primarily.

Why is "Move eyelid muscles" not the answer?

Eyelid muscles are moved by nerves and skeletal muscle.

What concept does this question test?

It tests Lacrimal system in Ophthalmology. The correct option holds because: Correct: tears protect and lubricate the ocular surface.

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 Lacrimal system?

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.