Lifitegrast
"I did not like this product at all. The main reason I have difficulty getting any drops to even come out of the tubes. No matter how hard I squeezed no drops even though it showed liquid in the bottom. Yes of course I twisted the top off. At least one whole package was this way. Others was barely enough to get a drop in one eye let alone both eyes. Very frustrating and too expensive for me to ever order any more. I went back to my old drops which I never had any problems with. I am very dissatisfied with this product. I would like my money back although I doubt that will happen."