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Discussion of Physics |
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The Eye |
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From www.howstuffworks.com |
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Cornea- Helps focus light to create an image on the retina |
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The cornea, along with the lens and some additional fluids acts as a converging lens |
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Converging Lenses |
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from www.glenbrook.k2.il.us |
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The above diagram indicated the way in which converging lenses focus light |
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Thicker at their center than at their edges |
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Generally, the shape of the cornea and eye are not perfect. Errors in vision that result are known as refractive errors. Refraction is the bending and focusing of light. |
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Three types of refractive errors are: Myopia (nearsightedness) Hyperopia (farsightedness) and Astigmatism (distortion of images on the cornea) |
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