That’s because the illusion is an autostereogram, “two-dimensional (2D) images with repeating patterns that hide an underlying three-dimensional (3D) image,” according to Vision and Eye Health.

There are plenty of optical illusions online, some trickier to decipher than others. It took me a while to get this brain-bending illusion to transform and it seems I'm not alone. Optical illusion ...

The Magic Eye books featured autostereograms, which are static images that give off the illusion of a 3D effect. It’s unknown if the original post was taken from the Magic Eye series but many ...

While new optical illusions go viral all the time, ... Magic Eye illusions are officially known as stereograms, or 3D illusions. Technically, they're 3D illustrations hidden within 2D graphics.

(Many illusions do work by playing on the way our eyes must work together, like Magic Eye pictures and the shallow 3D of movies or the Nintendo 3DS.) The third study is something totally different.

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