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Ophthalmology · Lacrimal system
Sample itemWhat is the usual role of tears?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Lubricate and protect the ocular surface
The finding is best explained by Lubricate and protect the ocular surface; this is the key Lacrimal system principle that matches the presentation described in the question.
Option by option
A. Focus light on the retina
Focus light on the retina can occur in a different setting but is not the best answer here.
B. Lubricate and protect the ocular surface (correct)
Correct. Lubricate and protect the ocular surface is the appropriate conclusion for the decisive clue.
C. Move the eyelid muscles
Move the eyelid muscles does not fit the symptom pattern or examination finding provided.
D. Increase intraocular pressure
Increase intraocular pressure does not account for the defining lacrimal system 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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