The evil eye dates back about 5,000 years - A SYMBOL of protection that wards off evil. It is said that if you wear the eye, you are protected from an evil glare so that it would be reflected back to the person casting it.
The evil eye, known as “mati” (μάτι) in Greek culture, is a curse thought to be given by a malicious glare that can cause bad luck or loss. You may have heard someone giving you the "evil eye" from across the room - and many people around the world believe this to be more then just a saying.
People can knowingly wish negative thoughts on you, but the power of the eye is that some people unknowingly and innocently cast the curse on others. That's why it's important to wear an evil eye somewhere on your body to ward off this curse and protect yourself throughout the day.