I've found a product that is working for me, instead of having to put tears in my eyes every few minutes I'm using these once every couple of hours. They are new to me at least. It is GenTeal lubricant eye gel, a unique disappearing preservative, long lasting. I've not seen this gel on the store shelves until now and I'm happy with it. Its a little tube that once you put it in your eye it dissolves and turns into pure water and oxygen. I'm hoping some of you will try it and let me know what you think about it. Or maybe some of you have already tried it. I am able to read or whatever I am doing for a lot longer period of time than I was able to with the other tears. thanks, penny