Question

Which part of eye control the entry of light into it?

Answer 1

Hey mate!!
here is the answer to your question
.
.
Iris controls the entry of light into eye.
Hope it helps you..

Answer 2

The iris controls the entry of the light .

It contains muscles called ciliary muscles.

These muscles contract and relax to adjust the closure of the pupil or opening of the pupil.

When the pupil dilates , it is called pupil dilation and occurs during darkness also called dark adaptation.

When the pupil constricts , it is called pupil constriction and occurs during bright light .This is called light adaptation.