Back in the 1950s, when color TV was invented, everything was simple. TVs were either color or black-and-white, and you could tell at a glance which was which. Today, you can find TVs and monitors ...
There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...
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