I have used several different glaucoma drops, and they all tend to form a bubble that bursts and drips down the nozzle. How can I prevent this?
The bubble results from air in the bottle. Try holding the bottle upside down with the cap on for a moment before putting the drop in the eye. I have had conversations with drug manufacturers and tell them that a dropper bottle is a terrible way to deliver medication. An aerosol or spray of some sort would be much better. Dr.