Do you see this divisive optical illusion as 3D?

"The illusion consists of a patterned set of blue and red circles, set out like a target against a black background. It's meant to appear in 3D (when of course it is completely flat). It's a version of an illusion I've seen before that's very similar but completely plain - and that one always causes division too. Some people blame astigmatism for their failure to see the illusion's effect while others have no explanation."

"The illusion is called Chromostereopsis, which is the perception of depth that's created by red and blue light hitting your retina at the same time. Your brain processes the two colours at two different wavelengths, creating the illusion of depth - therefore making it a 3D image. In the Reddit thread, people are discussing the difference perceived by people that wear glasses and people who don't."

The image shows a patterned set of blue and red circles arranged like a target on a black background that appears three-dimensional to some viewers despite being flat. Viewer reactions are sharply divided, with some people reporting no effect and others praising the illusion. Perceptual differences are attributed to vision issues such as astigmatism and to corrective lenses, which can produce chromatic aberration and exaggerate depth. The phenomenon is Chromostereopsis, where red and blue light focus differently on the retina, producing a depth percept. Holding the image at arm's length and relaxing the eyes can enhance the hologram-like appearance.

Read at Creative Bloq