Question

What is the function of iris and the muscles connected to the lens in human eye?

Answer 1

1. Function of Iris: The iris is a muscular diaphragm that controls the size of the pupil, which, in turn, controls the amount of light entering the eye. It also gives color to the eye.
2. Function of ciliary muscles: The ciliary muscles hold the eye lens in position and adjust its focal length by expanding and contracting.