reduce screen time to what is essential, every 10 minutes look
up from your screen, look out the window or at the furthest thing in the room
and forceably blink your eyes 10 times ((this stretches and relaxes the focus muscle in the eye like when you have been standing a long time and you sit down to take a break. Especially if your eyes feel hot, burny, cry find an artificial tear that make you eye feel not dry, put it in before you start your screen session. Put in each hour.