The 20-20-20 Rule
Do you spend a lot of time looking at a computer screen, smartphone, or TV? Your eyes need a rest, much like sore muscles do after a good workout. To reduce eyestrain, try the 20-20-20 rule: every 20 minutes, look away about 20 feet in front of you for 20 seconds. MedlinePlus has many other great eye care tips to help you see your best.
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