Hank brings the answer into focus. Hosted by: Hank Green

Hank brings the answer into focus.

Way more kids have fuzzy vision these days because we spend less time in outdoor light, which makes our eyeballs longer.

While not the kind of epidemic you're used to hearing about, nearsightedness is becoming a major health issue in many places. Learn about how scientists are finding out the reasons behind the increase in myopia, and how sunlight might be...

This video highlights the remarkable life of Pele, the renowned football player known as the king of football. It explores his achievements on and off the field, his dedication to his family, his involvement in various charitable causes,...

If you need glasses, but don’t wear them, does your eyesight get worse? Not necessarily. Corrective glasses help to compensate for a mismatch in the corneal shape of the people who need them, which helps them see clearly and reduces...

If you need glasses, but don’t wear them, does your eyesight get worse? Not necessarily. Corrective glasses help to compensate for a mismatch in the corneal shape of the people who need them, which helps them see clearly and reduces...

This video explains myopia and hyperopia, commonly known as short and long-sightedness. The video effectively explains the science behind these conditions and how they can be corrected with the use of concave and convex lenses.