The primitive glasses have their roots traced as far back as 12th-century China. However, the main concept behind the use of convex lens is for magnifying things for the user dates back much further. Alhazen published the Book of Optics in 1021. This only shows that the human eyes have always deteriorated, and mankind has been trying to fix it through the centuries.
The first ever pair of recognizable glasses showed up in Italy during 1200s. During the Middle Ages from 1400 to 1600, the primitive spectacles were available in every town. During that time, the spectacles that …