The Turkish evil eye, also known as a nazur or nazur boncu?u, is a charm or amulet shaped like an eye used to provide protection from suspicious or sinister people. Typically believers wear the amulet as a pendant or pin, or hang it in their homes to provide protection.
A Turkish evil-eye charm is usually constructed from a circle of blue glass with smaller circles of white, blue and black glass layered over it to create an eye shape. Some charms feature gold edging and handmade glass. The charm deflects negative energy, particularly poor energy sent by a person with an evil eye. This comes from the superstition that negative energy can only cause harm if the bearer makes direct eye-contact with the one he hopes to harm. The evil person is fooled into gazing into the evil-eye charm instead of the actual person's eyes, so no harm is done. Businesses sometimes display Turkish evil eyes to protect their companies from financial problems.
Turkish evil eyes are common in central and western Asia, and southeastern Europe. Souvenir shops that target tourists frequently sell them. A similar charm called an eye bead features a blue glass bead embellished with a dark dot on a white circle.