Illinois Vision Certification Practice Test

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Prepare for the Illinois Vision Certification Test. Master key concepts with flashcards and multiple choice questions that include hints and explanations. Boost your confidence and ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is one of the main functions of the Lacrimal gland?

To produce tears
To regulate light entering the eye
To enhance night vision
To store nutrients

The correct answer is: To produce tears

The primary function of the Lacrimal gland is to produce tears. These tears serve several important roles in maintaining the health and comfort of the eye. Firstly, they provide lubrication to keep the surface of the eye moist, which is essential for clear vision and comfort during blinking. Furthermore, tears contain enzymes that help to protect the eye from infections. The constant flow of tears also helps to wash away debris and irritants from the surface of the eye. In contrast, other options represent functions that are not related to the Lacrimal gland. The regulation of light entering the eye is primarily managed by the iris and pupil, which control the amount of light that passes through to the retina. Enhancing night vision involves the role of rod cells in the retina, which are sensitive to low light levels, rather than any function of the Lacrimal gland. Storing nutrients is not applicable because the Lacrimal gland's role is focused on tear production rather than nutrient storage, which occurs in different systems and organs.