Question

Explain the function of iris

Answer 1

The iris contracts and dilates involuntarily and changes the size of the pupil. The whole job of the iris and pupil is to control the amount of light that gets into the eye. It's called a pupillary reflex, and you have probably noticed that a person's pupils are smaller in bright light and bigger in low light.

Answer 2

Iris is the part of eye which controls the amount of light to enter the eye, it is a type of diaphragm with controls and regulates the size of the pupil through which light enters the eye.

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