An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive, creating a false or misleading impression of reality. This occurs because the brain processes visual ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: quixoticgurl via ...

Optical Illusion: Only a sharp-eyed genius can spot the odd rainbow in the picture in 5 seconds. Are you the one? Test your eyes now! Optical illusions are tricky pictures that play with your mind and ...