TED-Ed: How do glasses help us see? - Andrew Bastawrous and Clare Gilbert

The video explores the concept of refraction and its significance in vision. It explains how refractive errors like myopia, hyperopia, astigmatism, and presbyopia affect vision. The video discusses how these errors can be corrected using glasses, contact lenses, or laser surgery. It also covers the history and evolution of glasses, highlighting their development from early designs to modern, personalized eyewear.

What new insight or understanding did you gain from this video?