Some people have sight problems, they cannot see object nearby of far off.
Eyeglasses were invented in Italy around 1268- 1284 by Salvino D' Armate of Pisa and by Alesandro Spina of Florence.
Both share the fame.
Those glasses did not have arms.
They are kep on the bridge of the noses. These glasses were meant for far sight problems. In 1400 concave lenses for nearsighted were in invented and nearsightedness were invented by Benjamin Franklin around 1775.
Here are some tips to care for your eyeglasses.
Always rinse your eyeglasses off with water before wiping or cleaning them.