Color blindness By Robert, Will, John and Enri 7-4

Color blindness Color blindness is an inherited disease that affects the ability to see color. Some cases are more serious than others, though. Some color blind people cannot see blue and yellow. Others cannot see red and green. Some can’t see color at all (this is very rare, however).

What exactly is color blindness? In our eyes, we have tiny, tiny, tiny, little nerve cells, shaped like cones. These “cones” come in three colors: red, blue, and green. If even one of these cones are not present, you will have trouble distinguishing colors.

What causes color blindness? Color blindness is only inherited at birth. One parent (or both) would have color blindness for this to happen.

Symptoms of Color blindness Children first learn their colors around age 2. If the child cannot see or understand these colors at all, he or she would have colorblindness. Those who have colorblindness would also be unable to tell the difference between tints and shades.

The Spectrum

Treatment and Cures There are no known cures for colorblindness. There are no treatments, either. However, those who are colorblind can be helped. Even though they cant see color in traffic lights, they should still know that red is on top, yellow is in the middle, and green is on the bottom.

What are the chances of getting color blindness? About 8% of males are color blind. About.5% of females are color blind. If a colorblind male and a colorblind female had offspring, all of their children would be color blind. If a colorblind male and a non-carrier female with normal vision had offspring, the males would not have colorblindness but the females would be carriers of colorblindness.

more Color blindness tests What number or letter is in each of these boxes?