Do any of you photograhpers get this issue I have when shooting for long periods?
My closed eye gets blurry after a while, and it's very annoying. I tried using two eyes open, which does help, but habit makes me close it without realizing. When it gets blurry, I have to close it to see properly. It is even making it hard for me to drive home after a day shooting, which is not good. The only way to make sense of the LCD screen on my camera is to close that eye, otherwise they all look like they were handheld at 5 seconds at 400mm!
My eyesight is good, no glasses needed otherwise.
If I didn't think i'd look like such a tool with an eyepatch I would wear one!
Is this common or am I just messed up? 



