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20-20-20 Eye Strain Rule
The 20-20-20 eye strain rule: every twenty minutes, look twenty feet away for twenty seconds to relax ciliary muscles strained by screens. Stack with blinking and proper monitor height.
The 20-20-20 eye strain rule: every twenty minutes, look twenty feet away for twenty seconds to relax ciliary muscles strained by screens. Stack with blinking and proper monitor height.
Reduces headaches that mimic mental fatigue.
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