Color Blindness and Testing in Children

Child's color vision abnormality and inspection In the world of many technological progress, color perception is a very important problem. One of the main developments involves color technology. The growing interest in color technology raises awareness of the problem of color vision abnormality. Many people are affected by color vision abnormalities, but many people do not understand the cause of color vision abnormality and different kinds. In women, 2% have this deficiency, but in men there is a defect in 1 to 12 people (Lewis, Reitzammer & Amos, 1990).

Children often try to conceal their illness so color blindness may not be discovered for a while. If you have a family history of blindness, it is important to test your child, especially boys. Many school systems provide visual screening tests including color blind tests. Once a child is diagnosed, he or she can learn how to ask for help with tasks that require color recognition. Simple daily work such as cooking meat to the color of your choice or choosing a mature product is a challenge for adults. Because there are few appetizers, children may notice that the food is not brightly colored. There is a problem because traffic lights need to be read depending on the position of traffic lights. Most lights are vertical, the bottom is green and the top is red. If the light is placed horizontally, the color vision person must rotate quickly to read it. It is also difficult to read maps and buy clothes that match colors.

Ishihara color test is the most common test of red-green blindness. The test consists of a series of colored circles called Ishihara Plate, each containing a collection of points of different color and size. The shape formed inside the circle is clearly visible to people with normal color perception, but it is invisible to the person with red-green blindness. In the new Cambridge color test, except for computer monitors, we use a visual array resembling the original stone plate. The goal is to identify a C shape that is different from the background color. "C" is randomly displayed in one of 4 directions. When the tester sees "C", they are asked to press one of the four keys corresponding to the direction.