How to Use the 20-20-20 Ergonomic Eye & Posture Break Timer
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1
Select a break interval: Standard 20-20-20 Rule (every 20 minutes) or Custom Posture Stretch (every 45 or 60 minutes).
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2
Click "Start Ergonomic Timer" and keep the browser tab open.
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3
When the gentle chime alerts, follow the 20-second prompt: look at an object at least 20 feet away and stretch your neck/shoulders.
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4
Track total completed break sessions across your workday.
Practical Example & Use Case
Common Real-World Scenario
Using the 20-20-20 rule while programming for 8 hours to relax ciliary eye muscles and avoid end-of-day tension headaches.
Technical Notes & Limitations
Browser Engine Architecture
Audio notifications play directly in browser; enable browser tab audio for chime alerts.
Frequently Asked Questions
What is the 20-20-20 rule for screens?
Every 20 minutes, take a 20-second break and look at an object at least 20 feet (6 meters) away to relax optical focusing muscles.