What does a pupil do

At night, our pupils dilate to allow more light in to maximize our vision.Pupils is the plural of pupil.Typically, the pupils appear perfectly round, equal in size and black in color.Parasympathetic nerve fibres from the third (oculomotor) cranial nerve.The iris is a muscle in the eye that functions like the diaphragm of a camera (see figure 1 ).

Pupils are the black circles located in the center of your iris, or the colored part of your eye.So much so that in italy, over five centuries ago, women used belladonna plant extract to dilate their pupils in an effort to appear more attractive, scientific american reported.The pupil is the small black circle in the centre of the iris.The pupil controls how much light is let into the eye.The fibers of the sphincter pupillae encompass the pupil.

The whole job of the iris and pupil is to control the amount of light that gets into the eye.What does the pupil do in our eyes?In bright light, your pupils constrict (get smaller) to prevent too much light from entering your eyes.A circular muscle called the sphincter pupillae accomplishes this task.The size of the opening is governed by the muscles of the iris, which rapidly constrict the pupil when exposed to bright light and expand (dilate) the pupil in dim light.

The pupil is a black hole located in the center of the iris of the eye that allows light to strike the retina.