Optical illusions are fun ways of tricking the brain. Some of them cause us to perceive movement when there is none, others cause us to see something as being far larger or smaller than it really is, still others make us perceive a two-dimensional object as though it existed in three dimensions. There is, seemingly, no end to the ways that we can trick ourselves.

However, optical illusions are more than just fun tricks.

Optical illusions teach us about our visual perception, and its limitations. These tricks also help us understand how our eyes have evolved in certain ways. Each year, scientists, researchers, and illusion enthusiasts convene in Naples, Florida, to elect some of the best new optical illusions of the year at the Best Illusion of the Year contest. Here are the top 10 wins from this past year.

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