Systane Ultra (25 or 60 PF vials)

About Systane Ultra Lubricant Eye Drops (PF)   Practical Highlights Preservative-free Active ingredients: polyethylene glycol 400 0.4%, propylene glycol 0.3% Choice of 25 or 60 0.7mL vials  Rebecca's Thoughts I added this product to the shop because I have so many customers who use it and it's a convenience to them to be able to get all their supplies at once. I don't have useful personal experience to share as there is something about it that does not agree with my own eyes - the initial, rather persistent sensation of grittiness that I get after instilling them has me blinking constantly for awhile. But different user experiences are simply par for the course with virtually all over-the-counter drops for dry eye. I have a lot of respect for Systane Ultra just because of the many people I know who use it successfully. Systane Ultra is one of the more viscous drops designed to last longer on the eye. In dry-eye-drop-speak, viscosity also means temporarily blurry vision, so be prepa