the whole spectrum turns red.
They die.
it gets bigger
If the pupil of the eye did not work, than your eye could not regulate light entering it.
Nothing. AFTER the light is detected and calibrated, the pupil may change size.
When a light is not shined into an eye the pupil contracts gets bigger because the eye needs all the light being presented to it. If the light is not taken away the pupil does not dilate. PS like the eye gets smaller in the light.
in bright light the pupil shrinks
Light causes the pupil to constrict in bright conditions to reduce the amount of light entering the eye, and dilate in dim conditions to allow more light to enter. This pupillary response is controlled by the autonomic nervous system to regulate the amount of light reaching the retina for optimal visual functioning.
They become bigger and widder
Light Pupil Dilate was created in 2001.
When the eye is stimulated by bright light, the circular muscle of the iris contracts, decreasing the size of the pupil.
When the eye detects bright light, the iris expands causing the hole at its centre (the pupil) to shrink in size. The brighter the light the smaller the pupil becomes. This happens because, in a dark place, the eye needs to take in as much light as possible to see better so the pupil expands; in a light place, the eye could be damaged due to over exposure to light so the pupil shrinks. The scientific word for "shrinks" is "contracts"
after pupil first light enters aqueous humour or pupil