What really ended up helping me was getting a pair of Gunnar glasses. Plus, you may be able to get them through a health savings account if you're in the states. A bunch of colleagues now also use Gunnars (or similar) and all have had an improvement in eye strain/pain.
I also use f.lux as well as using saline eye drops at the beginning and end of the day.
I also use f.lux as well as using saline eye drops at the beginning and end of the day.