Vinnie Tieu, O.D.
Also, if you are a glasses-wearer, having a blue-blocking lens, or adjusting the screen color towards the red end of the color spectrum, can help with eye fatigue.
Lastly, some people who have very specific visual demands for their job may benefit from a special glasses prescription, specifically tuned for their visual focusing ability at a specific distance.
I hope you are able to find some relief soon!
Firstly, please have an eye test to make sure that's the only reason your eyes feel strained. Secondly, try and have a break from your computer, follow the 20-20-20 rule which is: every 20 mins, look away from your screen for 20 seconds at an object 20 feet away.