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 ...

An optical illusion is a visual phenomenon where the brain interprets images differently from how they actually appear. These illusions occur due to the way our eyes and brain process light, colour, ...

Maintaining eye health cannot be overstated in today’s fast-paced world, where screens dominate our daily lives. As digital devices become increasingly prevalent, many face vision-related challenges, ...