Marilyn Monroe Or Albert Einstein? Test Your Eyesight With This GIF

There's a GIF doing the rounds of the internet today and apparently, it can test how good your eyesight is. Have a look at the below image and if Marilyn Monroe morphs into Albert Einstein as the GIF moves forward, your vision is up to scratch. The faster the image changes, the better your eyesight and if it doesn't change at all, you might want to consider visiting an optician. The illusion was created by a research team at Massachusetts Institute of Technology, led by Professor Aude Oliva. It tests your ability to focus and pick up contrasts and the science behind it is explained in the below YouTube video. https://www.youtube.com/watch?v=tB5-JahAXfc