The Human Eye

        The human eye is the organ of sight, which some may say is the most precious of the five senses.  This is why Polyphemus was so angry when he lost his only eye.  We use our eyes to read, write, watch television, drive, and many other things.  Essentially, the eye interprets colors, shapes, and dimensions through the reflections of light that bounce off an object. 

        This is all made possible by a very complicated process, starting with the reflection of light that beams into your eye.  You see, the light enters the eye through the cornea, then it passes through the opening in the pupil.  From there, the light is focused in the lens and projected onto the retina to form an image.  This image on the retina is then converted into nerve impulses by light-sensitive cones and rods.  The impulses are then sent to the brain via the optic nerves.  The brain puts all of the nerve information together to create a single focused image. 

This project was developed by Sophomore students at Sandpoint High School for the 2001 University of Idaho EdTechQuest.  Contact us if you have any questions or comments.