Learn & free tools
Take better care of your eyes on screens.
Free, evidence-based guides and tools to ease eye strain through a screen-heavy day — from the makers of the EyeReset app.
The blog
Eye health, explained
Honest, cited guides on the 20-20-20 rule, dry eye, headaches, blue light, and more.
Read the guides →Free tool
20-20-20 break timer
A free browser timer that reminds you to look away every 20 minutes. No sign-up.
Open the timer →Free self-check
Digital eye strain quiz
7 quick questions to gauge how much screens are straining your eyes — with next steps.
Take the quiz →Latest guides
All articles →Why Our Extension Has No Blue-Light Filter
Do blue-light filters help eye strain? Two reviews found little sign they do, and a night-mode trial found no sleep difference. Here's what we built instead.
It's Not How Often You Blink, It's How Completely
Blinking less at the computer is only half the story. Focused reading lowers blink rate on paper too; screens add more incomplete blinks. Here's the study.
Does the 20-20-20 Rule Actually Work?
Break reminders eased eye-strain symptoms while people used them, then the benefit faded. The exact 20/20/20 numbers have little direct support. Here's the evidence.