The Egyptian Eye of Horus, also called the all-seeing eye, is a protective amulet that keeps guard with an open eye to evil, blocking its menacing ways. It is likened to the falcon god
(son Geb and Nut). Potential evils include ill health, thievery, ignorance, and poverty.
Some new agers believe the Eye of Horus symbol serves as a gateway between the third and fourth (astral plane) dimensions. Pairs of eye of horas images are representative of the sun and moon.
Learn about more healing amulets
Reference: Body Guards: Protective Amulets and Charms, Desmond Morris