I am experiencing pain in both the eyes at night since 1 year. I wake up from sleep with severe pain and grittiness in both my eyes or sometimes in any one of the eyes. I wont be able to open my eyes even. And my eyes water a lot and the pain subsides within 5 minutes. This does not happen every night but almost on alternate nights. I had undergone zyoptix laser for myopia some 3 years ago. I wonder whether this night pain in my eyes is a side effect of the laser treatment. Please help!!