AR (Anti-reflective) lenses are smutch free what makes them easier to clean.
You can also enjoy your glasses longer.
Lenses come in contact with the face.
Sweat, dander and smog are easily transmitted to your glasses. That is why it is important to regularly clean the whole frame. Avoid using a tissue or paper towel since these could scratch your eyeglasses or leave tiny fibers behind. Clean your eyeglasses frames every time you clean your glasses.
Early eyepieces were either hand-held or rested on the bridge of the nose (with hand support). Later the modern style of glasses was invented. However, the public didn’t immediately accept the design that rested over the temples and secured behind the ears and it wasn’t until the 19th century that the modern form of glasses became popular.
Before using organic material to grind lenses, there was mineral. Did you know that the word brille” comes from the mineral beryl. This mineral was used to make mineral lenses. Today, most spectacle lenses are made of plastic.
