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The Human Eye and Colourful World
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04/12/2020 10:14 am
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How does the eye adjust itself to deal with light of varying intensity?
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04/12/2020 10:14 am
The amount of light entering the eye is controlled by the pupil. If the intensity of the outside light is low, then the pupil expands to allow more light to enter the eye. If the outside intensity is high, then the pupil contracts so that less light enters the eye.