The ‘Iris’ enables ‘Pupil’ to act as a variable aperture for entry of light into the eye,
by helping the ‘pupil’ to expand in low light condition and contract in bright light condition.
The ‘Iris’ enables ‘Pupil’ to act as a variable aperture for entry of light into the eye,
by helping the ‘pupil’ to expand in low light condition and contract in bright light condition.