Staring at screens reduces how often you blink, causing dry, tired eyes. The 20-20-20 rule helps: every 20 minutes, look at something 20 feet away for 20 seconds.
Other things that help: increase text size so you are not straining, position your screen slightly below eye level, and consider blue-light filtering lenses if you work long hours indoors. Ask us about anti-fatigue lens options next time you visit.