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20-20-20 Rule
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20-20-20 Rule
Timer for the 20-20-20 eye rule.
#eye
#vision
#health
#timer
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20-20-20 Rule
Every 20 mins, look 20 feet away for 20 secs
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Instructions
Timer for the 20-20-20 eye rule.
How to use:
Enter the required parameters in the input fields.
The results will be calculated or generated automatically.
Review the output and use the results as needed.
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