Colloidal Silver can be put in the eyes and is multi purpose, heals burns, sores, internal problems and helps all kinds of injuries. Go to search engine type in colloidal sivler eye help and see what information you can find out. I use eye drops of Colloidal Silver and Black-Walnut for parasites, which by the way blur my vision to almost un-seeable until I use the eye drops and wipe the dead parasites off my eyes many times a day....heyjude