Everyone can see the two people and vase of flowers - but only geniuses ... University of Glasgow found that staring at an optical illusion can improve eye sight by allowing you to see small ...

For example, you might look at a picture and see a vase ... illusion personality test claims that what your eyes catch first can reveal some of your dominant personality traits. If You Saw A Man's ...

Once the image is flipped, the girl's face stands out, formed inside the recesses of the rose. Optical illusions are not just entertaining but also provide insight into how our minds function.