A student in a brightly lit room covered both of her eyes with her left hand while
holding a mirror in the other hand. The student closed her eyes. She counted
slowly to 60. Then she quickly removed her hand from her eyes, opened them and
looked in the mirror. Make drawings of what her iris and pupil would look like, as
they appeared when the eye was first uncovered and about one minute later. Explain how the changes shown between your drawings occurred
and how these changes help the functioning of the eye.