Optical illusions have a way of taking over the internet (take "The Dress," for example), and another one seems to have the web abuzz. This one, though, might help you diagnose .
Watch the video above from the distance away from your computer screen at which you usually sit. Whom do you see coming toward you? From afar, you may see actress Marilyn Monroe. If you have , the figure should start becoming physicist Albert Einstein soon after the image grows larger. If you're still seeing the blonde icon, it might be time to schedule an appointment with your eye doctor and invest in some glasses or s.
A research team lead by at the Massachusetts Institute of Technology in Cambridge, Massachusetts, created the illusion years ago. A recent video posted by AsapSCIENCE explains how it works. "Depending on how well you're able to focus or pick up contrast, your eye will only pick out details... As the distance increases or if your vision is poor ... you only see general features, like the shape of the mouth, nose and hair, and are left seeing Marilyn Monroe." But if you have keen eyesight, you'll catch Einstein's bushy eyebrows, mustache and wrinkles.
The illusion also works as a still image. The farther away you move from the picture while still seeing Einstein, the better your vision.
Which famous face do you see?