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Transcript of color-blindness presentation
Very few people are actually totally color-blind, just seeing in shades like in the image below. The last type, total color-blindness, is when you can't see any color. That can really be a huge problem for people who have it, as that makes them unable to preform many jobs and to do many tasks, and have to rely on others all the time for help with the problems it causes. What could we use to replace color in society if we were all color-blind? This is one of the tests that might be given to
someone who thinks they might be color-blind.
If you are red-green color blind you will not be
able to see the 74 in the red circle. Blue-yellow color blindness is a rarer type of color blindness. Less than .1% of the people on Earth are estimated to suffer from it, which is about 7-8 million people. Something you may have noticed is that the colors like the green and orange also seen affected by being color-blind for blue and yellow. That's because they have shades of yellow and blue in them. The same thing happens with some colors and red/green shades for people who are red-green color-blind. This is a photo that shows the difference between regular vision and blue-yellow color-blindness. It's the same image, but from the point of view of someone with good vision and someone with color-blindness. Regular Color Blind Regular blue-yellow color-blindness Think of the problems you could have just eating food. You wouldn't be able to tell if it was rotten or not! The good thing is that it affects a very small amount of people. Only a few thousand people in the world have total color blindness. So back to the big question... What could we replace color with that would do the same things color was doing if we were all color-blind? How do we use color now? The answer isn't very simple, as we use it everywhere,(including right there!) We use it on things ranging from clothing to maps to pictures to signs. Everywhere you go, color is all over the place. Back to our question.... To answer the question you have to generalize a bit. Most of the time when we use color, we are trying to help convey a message without words or help to make something stand out. We also use it for decoration, like lights on Christmas trees or paint on houses, but those things aren't what I'm talking about in this presentation. To understand how we use colors in our lives and because total color blindness is the simplest form, I am going to pretend everyone in the world has total color blindness. We often use color to differentiate
between things and make them stand
out, like using different color jerseys for sports teams Quick Note If we use color to give messages without words and differentiate between things/make things stand out, then we have already answered a big part of our question. If we know exactly how we use color, the only thing we need to do to answer our question is figure out what does those same things that color does but has no color. To make this presentation interesting, for the rest of it there will be no color. That helps answer the question too, as I'm going to have to use our answer while I'm making the presentation. Part 1 of our answer is how we can send messages without color. Often signs will have words and pictures with color to help send the message. When our brain sees colors it thinks of a certain emotion, like energy and excitement when we see red. That is why many warnings and fire exits are red. We use colors because they send messages so easily. But if we used pictures more and made them really catch your eye, that would serve the same purpose. STOP!!!! NOW!!! If we're trying to make something stand out, than we can use some of the same tactics. Instead of making every state on a map a different color so you can tell where the border is, just make the borders
or the states REALLY STAND OUT by making the lines bold, for example. That makes it easy to tell all the states apart. Most of the time we use colors to make things stand out or convey a message to us. If that's why we are using colors, then having a picture that displays the same message or makes something stand out to us can usually work just as well. I guess the question becomes why we don't use those alternatives more often, since that would definitely help those people in the world that have red-green color-blindness or even blue-yellow or total color-blindness.