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Ophthalmic Assistant

Category - Patient Services and Education

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Normally, the surface of the eye is hydrophobic. What does this word mean?

A high pH
A low pH
Water friendly
Repels water

Explanation

Answer: D - Repels water

Normally, the surface of the eye is hydrophobic; this means that it repels water. Mucin creates a layer over the corneal epithelium, which allows the tear layer to adhere to the eye.

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