In today’s digital age, prolonged screen time—from computers to smartphones—can lead to significant eye strain. To mitigate this, the 20-20-20 rule is a simple yet effective strategy: every 20 minutes ...
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What Does It Mean to Have 20/20 Vision?
The term "20/20 vision" refers to how sharp your eyes are when you look at a standard eye chart (Snellen chart) from a distance of 20 feet (or 6 meters)—depending on where you live. In the United ...
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