This is a product my ophthalmologist recommended to treat dry eye. It is an excellent product. Wal Mart provided superb customer service. It arrived within 3 days of ordering it online and at a better price than in the store.
I tried many brands before finding Systane preservative free vials. They are great!! I use them three or four times daily. I order a month's supply online which is very convenient. They are delivered fairly quickly and usually are not damaged. I have found that for some reason all the Systane Ultra Pres. Free Vials which I have seen in my local Walmart are always damaged terribly. I don't know what the reason is for this. I have never received an order of the Systane that was damaged badly enough to send back. Thank you Walmart for offering this online!!