what happened to the size of Pupil of our eye in dim light
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In dim light, your pupil expands to allow more light to enter your eye. In bright light, it contracts. ... Some of these nerve impulses go from the optic nerve to the muscles that control the size of the pupil. More light creates more impulses, causing the muscles to close the pupil.
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- The colored part around the pupil called the iris adjusts the size of the pupil.
- Its main function is to regulate the amount of light that enters the eye.
- In dim light the pupils dilate (open wider) so more light can enter.
- Switch to bright light and the pupils automatically contract.
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