how do our eyes enable us to see the object placed at different places
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The light first passes through a tough protective sheet called the cornea, and then moves into the lens. This adjustable structure bends the light, focusing it down to a point on the retina, at the back of the eye. The retina is covered in millions of light-sensitive receptors known as rods and cones
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Light from the sun, or an artificial light, travels in a straight line, bounces off objects and into our eyes through the pupil. Depending on the amount of light, the iris changes the size of the pupil to let more or less light in. This is to prevent damage to the eyes, by stopping too much light entering the eye when it is bright, and maximising the amount of light entering the eye when it’s dark
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