A piece of blotting paper containing the dye is touched to the surface of your Eye. Blinking spreads the dye and coats the tear movie overlaying the surface of the cornea. The tear movie accommodates water, oil, and mucus to protect and lubricate the attention. You know, I never make comments on something over the web..however have to on this recipe. Following the directions to a tee this eye of spherical came out perfectly!