Known as "the sneak thief of sight," glaucoma is a disease characterized by gradual loss of vision resulting from death of the cells in the eye which transmits visual images through the optic nerve to the brain. As the optic nerve becomes increasingly damaged, permanent vision loss and blindness can occur. Early detection is the key to treating and halting the effects of glaucoma, but worldwide estimates reveal that more than half of glaucoma sufferers do not even realize they have the diseas