I’ve had problems with my corneas tearing from my eyes being too dry. My eye doctor told me to use not just drops, but a particular one because it didn’t have preservatives that would accumulate over time and the single-vial version would negate the risk of contaminating the bottle.
So I use GenTeal.
There’s been a growing recall of contaminated eye drops that have caused eyeball loss and sepsis and deaths and that multiple antibiotics are not able to cure.
GenTeal’s single-use vials say made in France. Okay so far. Their ointment, however, is made by one of the two companies under recall. FDA link here. Symptoms list here. If you use any made in China or India, including those sold by Costco, it’s probably from those two companies that this has been traced back to. One source I read said the India plant has been a repeat offender on contamination, but I don’t have the data to back that up.
Regulations, folks. They’re life savers.