I had laser eye surgery a month before we deployed. The doctor told me I'd have to use moistening drops for quite some time, but it's been especially bad since I've been out here. I woke up the other morning and I couldn't open my eyes at all. It was pretty painful and quite scary. I don't want that to happen again. I keep them by my bed now, so I'm sure to remember to moisten up before hitting the sack.