Topic: Pupil Size Changes
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Answers to Common Questions
How the size of the pupil changes in light?
Answer As it gets darker, pupils get bigger. (They also get bigger when viewing something the person likes) Read More »
Source: http://wiki.answers.com/Q/How_the_size_of_the_pupil_changes_in_li...
Why does the pupil size change?
It depends on how much light your eyes receive, in dark places or when you close your eyes your pupils dilate (mydriasis) to increase the ammount of light they can take in, conversely, when looking at an intense light the pupils contract (m... Read More »
Source: http://wiki.answers.com/Q/Why_does_the_pupil_size_change
Why does the pupil change size?
This happens because the muscles in the iris (the coloured part) close in to make the pupil smaller when there is to much light to protect the little cells in your eyes. It also happens vice versa to make the pupil bigger when there is litt... Read More »
Source: http://wiki.answers.com/Q/What_causes_pupils_to_change
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Pupil Size Changes
More Common Questions
Answers to Other Common Questions
in order to let in more light in dim conditions or less light in bright conditions.
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Source: http://wiki.answers.com/Q/Why_is_it_important_that_pupil_can_chan...
it squishes it until it becomes so small that the naked eye can't see it. (he he he) (naked)
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Source: http://wiki.answers.com/Q/How_does_the_muscle_of_the_iris_change_...
The iris is like a contractile structure of smooth muscles which surround the pupil. The sphincter pupillae, one of the smooth muscles categories of the eye, causes constriction of the pupil. The dillator pupillae, the other category of smo...
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Source: http://wiki.answers.com/Q/How_does_the_iris_change_the_size_of_th...
Myosis = contraction of the pupil Mydriasis = dilation of the pupil
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Source: http://wiki.answers.com/Q/When_your_pupil_changes_sizes_what_is_i...
It changes to control the ammount of light entering the eye. This allows you to see in bright and dim light.
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Source: http://wiki.answers.com/Q/Why_does_the_size_of_a_pupil_change_in_...
Your pupils change size to let in either less or more light to let you see. So if you close your eyes for about a minute your pupils will become larger because no light is getting to them, however if you look into a light your pupils will s...
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Source: http://wiki.answers.com/Q/Why+does+the+pupil+chnge+sizes
