About Color Vision Lab
Your eyes see color with three kinds of cone cells: one for red light, one for green and one for blue. In the Light mixer you shine three spotlights together, just like the tiny lights in every screen, and discover that red and green light make yellow, and that brown is really dark orange.
About 1 in 12 boys and 1 in 200 girls see colors differently, usually because their red or green cones work differently. See like me shows a fruit bowl, traffic lights, a rainbow garden and a sports day the way red-weak, green-weak and blue-weak eyes see them, using a published model of color vision. In Sam's eyes you guess which pairs of colors look the same to a green-weak friend.
Dot pictures hide numbers in dots that are about as bright as each other but differ in red and green, so they fade for green-weak eyes. You can make your own hidden picture too. This is a science game, not an eye test: only an eye doctor can test color vision. Made by an eye doctor.
Best for ages 7+
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