Color blindness is an abnormal condition characterized by the inability to clearly distinguish different colors of the spectrum. The difficulties can range from mild to severe. Normal color vision requires the use of specialized receptor cells called cones, which are located in the retina of the eye. There are three types of cones, red, blue, and green. Those cones allow a person to see a wide spectrum of colors. In the eye there are rods. These rods allow you to see black and white. When a person’s rods or cones do not function properly, it is because they are color blind. It only takes one genetic change in a cell to cause this condition. Usually being color blind is hereditary. If not inherited , then it is due to damage to the retina or
