Multiple Choice
Which part of the eye is the circular opening in the iris that allows light to enter?
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15. The Special Senses
Structure of the Eyeball
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Which of the following is the primary function of the cornea in the human eye?
A
To produce aqueous humor
B
To focus light onto the retina
C
To provide nutrients to the lens
D
To control the amount of light entering the eye
Verified step by step guidance1
Understand the structure of the human eye: The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber.
Identify the role of the cornea: The cornea's primary function is to refract, or bend, light as it enters the eye.
Recognize the importance of light focusing: The cornea works with the lens to focus light onto the retina, which is crucial for clear vision.
Differentiate the cornea's function from other eye components: Unlike the lens, which can change shape to focus light, the cornea provides a fixed level of refraction.
Conclude the primary function: The cornea's main role is to focus light onto the retina, aiding in the formation of a clear image.
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