They say that if you don't see something you don't believe, but sometimes our eyes may not see the same thing with someone else. This illusion, which contrasts the faces of Marilyn Monroe and Albert Einstein, is a decent test of distant and near vision. As he explains the AsapScience, most people with decent eyesight will see Einstein, but those with less good eyesight, you will see the Marilyn Monroe.

This type of illusion is known as a “hybrid image”, and developed by Dr. Aude Oliva at the Massachusetts Institute of technology (MIT), as part of a series of experiments that studied how the brain interprets Visual stimuli.