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Questions and Answers
What is the role of the cornea in the eye?
What is the role of the cornea in the eye?
- Focuses incoming light (correct)
- Regulates the amount of light entering the eye
- Converts incoming light into electrical signals
- Adjusts its shape to focus light at various distances
What is the function of the iris?
What is the function of the iris?
- Converts incoming light into electrical signals
- Adjusts its shape to focus light at various distances
- Controls the amount of light entering the eye (correct)
- Focuses incoming light
What is the role of the retina in the eye?
What is the role of the retina in the eye?
- Converts incoming light into electrical signals (correct)
- Regulates the amount of light entering the eye
- Adjusts its shape to focus light at various distances
- Focuses incoming light
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Study Notes
The Eye's Structure and Functions
Cornea
- The transparent, dome-shaped surface at the front of the eye, responsible for refracting light and protecting the eye from dust, dirt, and other foreign particles.
Iris
- A colored, ring-shaped membrane that controls the amount of light entering the eye by adjusting the size of the pupil, ensuring proper light exposure for clear vision.
Retina
- The innermost layer of the eye, responsible for converting light into electrical signals that are transmitted to the brain, enabling us to perceive and interpret visual information.
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