I have been using Restasis for sbout12 years now. I find that it makes my eyes blurry after placing the meds in my eye. I think it comes from its make up an oily feel. I tried Xiidra a few weeks ago in a sample pack and it improved my eye sight over all. Only issue I had was most of the vials in that sample pack did not contain enough product. Some only had enough for 1 eye, Contacting them to let them know was even much more painful . 🙂 I am going to switch to Xiidra for a longer term and evaluate as needed. Good luck to all. Stay Safe.