Name the three layers of tear film.

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Prepare for the Certified Paraoptometric Assistant (CPOA) Exam. Study with extensive flashcards and multiple choice questions with explanations. Enhance your skills and knowledge to succeed.

Multiple Choice

Name the three layers of tear film.

Explanation:
Tear film has three layers: an outer lipid (oily) layer that slows evaporation and smooths the surface, a middle aqueous (watery) layer that provides moisture and nutrients, and an inner mucin layer that comes from goblet cells and helps the tear film spread evenly and stick to the cornea. The option describing Oily, Watery, Mucin aligns with this standard structure and naming, capturing the correct sequence and components. The other descriptions either reference anatomy rather than layers or mix up the terminology.

Tear film has three layers: an outer lipid (oily) layer that slows evaporation and smooths the surface, a middle aqueous (watery) layer that provides moisture and nutrients, and an inner mucin layer that comes from goblet cells and helps the tear film spread evenly and stick to the cornea. The option describing Oily, Watery, Mucin aligns with this standard structure and naming, capturing the correct sequence and components. The other descriptions either reference anatomy rather than layers or mix up the terminology.

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