Color blindness – types, interesting facts and a diagnostic test with pictures

Color blindness is a violation of the color perception of vision. Simply put, color blind is a person who does not distinguish between certain colors or shades. According to statistics, every tenth man on our planet is color blind. The only difference between them is the type of violation, due to the number of colors that they can recognize. In the article we will deal with the features, causes and correction of color blindness. You can pass a special test for the perception of colors, with which a deviation is detected.

The concept of “color blindness” came about thanks to John Dalton, an English physicist and chemist who himself learned about his color perception disorder as an adult at age 26. This happened due to his passion for botany. When studying a flower, he noticed that in daylight, the plant seemed sky blue to him, and in the evening with a candle, the flower turned dark red. Such a metamorphosis was not noticed by anyone around, except the scientist’s brother. Then Dalton began to realize that his vision was not in order and this phenomenon was hereditary. Continue reading →