allergic reaction to the preservative in many eye drops (benzalkonium chloride) is more common than you would think and presents the same symptoms as well.
allergic reaction to the preservative in many eye drops (benzalkonium chloride) is more common than you would think and presents the same symptoms as well.
i use this , it works well . Especially here in Colorado where it is drier and more dusty ... plus I had PRK surgery and was told with that procedure that you wont produce as much tears as you used to