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9 January, 11:19

How does the pupillary response prevent injury? What would happen without it?

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  1. 9 January, 11:27
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    Pupils dilate and constrict in order to allow an adequate amount of light to pass through the retina and vision. If there is not enough light and the pupils do not dilate, a small amount of light will pass to the retina and the vision will be damaged.
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