Viral

Can you see what's hidden in this red circle? Some people can't

Can you see what's hidden in this red circle? Some people can't
Jack O'Neil

The seemingly endless trend of online eye tests and optical illusions has plundered new depths.

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The newest sensation takes the form of an eye test - although we're not exactly sure the test created by Jack O'Neil has any scientific grounding.

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An image is overlaid onto a red circle, but can you see what it is?

Take the test, below:


Jack O'Neil

As you may have seen, it was a horse in the grass.

The test presumably tests our ability to perceive and differentiate between hues of red, meaning that people with protanopia, or red-colour blindness, would have difficulty with the test which only slightly varies in hue

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