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UNO REVERSE

This Wild Vision Test Only Works If You're Colorblind

Grant Brunner
Grant Brunner
This Wild Vision Test Only Works If You're Colorblind
People with standard color vision need not apply.
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If you've ever been to the eye doctor, you've almost certainly taken an Ishihara test with colored bubbles hiding a number in plain sight. Typically, these kinds of tests are designed so that the number is only visible to those of us with standard color vision.

For those of us with color deficiency, on the other hand, the Ishihara test is an exercise in frustration most of the time; you can stare at it all day long and you'll never see those pesky digits. The test can, however, be redesigned to take advantage of this difference in vision instead.



If you have deuteranopia, a specific type of red-green colorblindness, you can probably see a "73" written in the colorful image above. Bask in this example of your genetic difference being a strength, not a hindrance.

If you have protanopia, you might see a crooked "23" instead, but that's probably due to the ambiguity that comes with working with little colored circles.


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[Image: Issac King]

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