2. Reduce Surface GlareMonitor glare is the number one culprit of office eye strain, so be sure to adjust your setup so no light is falling directly across the screen, whether that means adding a hood to your screen or rotating it away from a window. Also consider adding an LED strip or light puck to the back of your computer monitor, to reduce the contrast between the wall and the monitor light.
Read more: 5 Aesthetic Ways to Reduce Monitor Glare
3. Take Breaks & Use the 20-20-20 RuleSetting a reminder to take microbreaks and following the 20-20-20 rule (every 20 minutes, look at something at least 20 feet away, for at least 20 seconds) will not only help you reduce eye strain, but prevent you from slipping into a work funk.
4. Try Some ExercisesIf your preventative measures haven't worked, there are some easy exercises to follow to help ease the pain and give your eyes a little stretch, so to speak. There are also some palliative measures, like hydration.
Check them out here; though if you follow the other steps, hopefully you will never need such remedies again.