The op-art loving side of the internet has developed a new obsession – the reverspective optical illusion. Taking Reddit by ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Optical illusions are not just fun internet games. These visual illusions are a fantastic way to test your eyesight and ...

Look closely at this picture. At first glance, you can see a big tortoise in the centre of the image. But look closer, and ...

Most people use the terms “optical illusion” and “visual illusion” interchangeably. “That’s a pet peeve of mine,” says Pascal Wallisch, a neuroscientist and psychology professor at New York University ...