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 ...
Good eyesight does not always mean healthy eyes. Experts warn that conditions like glaucoma, dry eye disease, and digital eye strain can develop silently, especially with rising screen use. Regular ...