On this computer disk you can look up what ever you wish to know about science and the senses. It is just like a book encyclopdia system. Top of page . Top of page . The colored area that is around the eye adjusts with the amount of light entering, just like the way that they pupil does.
Many people have different colors of irises.
Your irises could be blue, brown, green and hazel. Hazel eye are eyes that have a tendency to change colors. Your lens operates just like a camera lens, forming an image of objects. Images are formed on the back of your eyeball, the retina. The retina is covered with tiny receptors, called rods and cons, which send signals to your brain.