Do people who are color blind see everything in black and white?
“Color blindness” is the common term used to describe color vision deficiency. The term is misleading, because total color blindness that turns the world into shades of gray is rare. The most common type of color blindness makes it difficult for people to discriminate between red and green. The next most common form of the deficiency affects the perception of blues and yellows. Those with blue-yellow blindness almost always have red-green blindness as well. Many people with color blindness don’t know they have it. For example, they are taught at an early age that grass is green. They look at lawns and see yellow grass. Subsequently, if you ask them what color the grass is, they will tell you it’s green. (Please don’t ask me how they handle shopping for bananas.) Color blindness affects about ten percent of men, but only one percent of women. Most people with color blindness inherited it. There is no treatment to correct inherited color blindness. However, there are specially tinted eye
