Whats wrong with my eyes..?

I got lasik done on my eyes for the 4th time and it finally corrected everything according to the surgeon and optometrist of lasik. My last surgery was 5 months ago. I see blurry all the time still! From close and far! And worse part is i feel my eyes are not working together.. like they cannot focus properly.. i have trouble reading as well.. cant focus on the words as they are not clear. My whole world looks smudged! I went back to lasik and to the surgeon.. they checked my eyes and i got a prescription of +0.25 in the left and an astigmatism of -0.25 on the right. They told me that my vision is perfect and that the blurry vision constantly and focusing problems is due to dry eyes. They said my eyes are very dry. They dont feel dry. Can dry eyes cause all this..