I connected with Central High School students from his office in Washington, D.C. by hosting a live video chat and answering dozens of questions. As one of the youngest members of Congress, Representative Smith has embraced new technology to stay connected with constituents when he is in Washington, D.C.
Pupil is an opening, thus is controls the amount of light that enters our eye. The pupil in your eye is actually a hole in which light and pictures can be viewed. Stuff doesn't go in it because our pupils are covered with a protective layer called the lense. To control the amount of light entering the eye.
The pupil can expand to be become larger (dilate) or contract to become smaller (constrict). Your iris contains muscles that respond to outside stimuli to control the amount of light that reaches your retina. In bright light, the pupil constricts to reduce the amount of light entering the eye.