My favorite scleral lens filler
These vials are wonderful for scleral use. I find that one vial is just right for rinsing and filling both of my 18mm lenses, even with a little to spare if I need to squeegee during the day.
Due to their size they are wonderful for my emergency eye care kits (one in the care and one in my purse). I find them great for travel as well - just count out how many days and throw in a few spares. I have never had a problem flying with them, I think because security personnel are used to seeing them for nebulizer use.