I am using Pataday(0.2) one drop instilled in each eye twice a day for eye allergy. Pataday works well but never lasts long enough and my doctor told me to use it twice a day. He recently gave me a sample of Lastacaft (0.25%) and told me it is stronger and to try it. One drop instilled in each eye once a day. I did try it for one month and it works well for me and I like it, however, I noticed it cost well over twice as much as Pataday. My insurance pays 85% of Pataday but I would have to pay 100% for Lastacaft. My questions is....Is anyone using either one of these eyedrops and found one better than the other, and did you get any coverage from insurance? I was given an 'instant savings card of up to 50% off at the doctors office. I informed my doctor that I would check into it and let him know as he prefers I would use the Lastacaft. He recently did the eyelid probing to release the meibum (I have DES and MGD) and with the follow up appt. and exam, sees better results since using the Lastacaft. It appeared it worked better with the eyelid probing than previous probing had using the Pataday. I'm still searching for answers and any help you can offer me on these products. Thanks.