When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess with the brain's visual processing system, making viewers see things ...

Test your vision by finding a hidden number in an optical illusion. The illusion uses motion and geometry to trick the eye. The hidden number in this optical illusion will be revealed at last. At ...

What Is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of showing reality exactly as it is, optical illusions manipulate ...

A geometrical optical illusion is a type of puzzle in which lines, patterns, and figures mislead the brain about their actual perception. These optical illusions do not always seem correct as they ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling ...