Need a visual guide? “The best way to illustrate this is to get your sheet of paper, and hold it horizontally—parallel to the ground—at eye level,” astrophysicist Jonti Horner wrote in an ...

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

Optical illusions trick our visual system into seeing things that aren’t actually there or misinterpreting what we observe. Optical illusions were often attributed to witchcraft, spirits ...

The peripheral drift illusion causes us to perceive motion in a still image. A new study shows that the mechanism of this illusion relies on changes in pupil size.

Radiologists are particularly adept at spotting optical illusions, according to a new study that sheds light on how one could train to avoid being tricked by their vision. Until now, scientists ...

Optical illusions have become a popular challenge for puzzle enthusiasts, providing a unique test for the mind. From brain teasers linked to age to complex math-based puzzles, there is no shortage ...

Optical illusions are a unique type of brain teasers, designed to test the limits of your perception and challenge your observation skills. Known for their ability to trick the eye and mind ...

Optical illusion billboards are popping up across Sydney in a bid to encourage Australians to get their vision tested. Picture: Supplied. The illusion is only visible when out of focus ...