It doesn't sting and I love the way the bottle works and it's preservative free ...
I experience Recurring Corneal Erosion and am trying to hold off having to get surgery for it so I am trying to find ways to lubricate my eyes and improve my cornea.  This has helped so far.  I use it throughout the day in addition to Muro 128 ointment and Refresh PM at night and my ophthalmologist has seen an improvement in my damage. It doesn't sting and I love the way the bottle works and it's preservative free so if I ever can wear my contacts again I can use this while wearing them.  I will definitely be re-ordering.
Rating: 5 stars