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3 Cards in this Set
- Front
- Back
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Cornea |
- Outer layer of the eye - Made out of living cells that are completely clear - The light rays arrive at your eye and are refracted. - Directs the light into the pupil so an image can be produced. |
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Lens |
- Convex lens - Can adjust its focal length depending on the distance of the object being examined. - The lens is attached to muscles inside the eye that can change shape. - When the muscles contract, the lens becomes more spherical and thicker to focus on close-up objects. - When the muscles relax, the lens becomes less spherical and thinner to focus on far-away objects. |
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Retina |
- Acts as a projector screen for the light entering your eye - The light has already been focused by the lens and cornea - The image formed is inverted, but your brain interprets the image as being right-side up. |
