Eye Strain Calculator
Calculate screen breaks using 20-20-20 rule
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公式
20-20-20: Every 20min, look 20ft away for 20sec
The 20-20-20 rule reduces digital eye strain significantly.
示例
8 hrs, 8 breaks
33% compliance — take more breaks!
常见问题
关于 Eye Strain
Track and reduce digital eye strain with the 20-20-20 rule.