Using a Preservative Free Dropper
By Pharmacist Don
STOCKTON - Preservative-Free eyedrops don't have chemicals in them to slow the growth from bacteria and fungus particles from the air that enters the bottle after an eye drop is used. Specialized preservative-free containers prevent room air from contaminating the solution inside the bottle. The drops come out a slower, so use a gentle squeeze to express them and wait 3-5 seconds for the drop to form on the blue-tip. Don't over squeeze the bottle. Click on the picture to see a Youtube video about this.