I am wondering if using an eye patch and switching eye every 2 hours would make my eyes 50% less tired as I probably don't need both of my eyes to see my whole computer screen and they are probably not working more when only one is active at the time.
Sounds like you're on the wrong track. Your body didn't evolve to use only one eye or to only use your eyes half the day.<p>Sounds like you need some anti-strain glasses made for computer use. Also, it's not healthy to look at something close all day. You should look this up, but there is a recommendation to do something along the lines of focusing on something farther away about every minute.