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8 Cards in this Set
- Front
- Back
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a transparent, outer layer at the front of the eyeball
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cornea
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the opening in the iris through which light enters the eye
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pupil
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the colored part of the eye that surrounds the pupil and regulates its size
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iris
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the lining at the back of the eyeball that is sensitive to light
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retina
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a bundle of nerves which connects the retina of the eye with the brain
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optic nerve
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Describe the process that enables people to see.
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The image in the form of light enters the pupil while the iris adjusts the size of the opening. Light passes next through the lens. The image is focused upside down on the retina. From here, a message goes to the brain. When the brain decodes the message, we see the image right side up.
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What kind of glasses would a nearsighted person need?
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glasses with concave lenses
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What kind of glasses does a farsighted person need?
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glasses with convex lenses
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