Question

what is the function of Pupil and islands in the human eye

Answer 1

The iris contracts and dilates involuntarily and changes the size of the pupil. The whole job of the iris andpupil 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

Answer:

So, in order of how we see, here are their roles.

1) Light passes through the cornea covering the eye which refracts it.

2) The iris regulates the size of the pupil which controls how much light is allowed to enter the eye.

3) Behind the pupil is the lens that focuses light onto the retina .