Human Eye

What is the human eye? The human eye is part of the body which reacts to light and has many different other functions. It is made of more than 2 million working parts. The eye has many parts for example, the cornea, lens, iris, retina, optic nerve, and many more. The human eye is one of the most important organs because without the eye humans won't be able to see anything. Without light humans wouldn't be able to see,The retina contains millions of nerve cells called rods and cones it was named after their shape. The cones are used for recognizing color and detail while the rods are responsible for night vision, side vision, and detecting motion. One of the functions of the eye is producing tears. Tears are important because they nourish the surface of the eye and wash away waste on the eye. The eyeballs stay the same size from birth to death. The eye is located in a hollowed eye socket for protection and the eyebrows and eyelashes also protect it. The eyebrows block sweat dripping into the eyes and the eyelashes prevent dirt from going into your eyes. The eye weighs approximately under an ounce and is about an inch across. ⅙ is human eyeball is exposed. The eye is comprised of three coats, encasing three transparent structures.