Wanna know if your vision is up to snuff? Save yourself the trouble of making an appointment with the optometrist and watch this, instead.

This very cool video featuring a hybrid image of Albert Einstein and Marilyn Monroe will tell you a little bit about your eyes, but it will also mess with your head because you will be all, "Whoa, that's amazing!"

Things you probably don't pay attention to, like frequency and contrast play a role in determining what exactly you see. Your eyes and mind may feel duped by this unique eye exam.

This may be the most intense thing to happen to your eyes since #thedress caused you to get into heated arguments with everyone you know.