Surprisingly, when a scholar-monk Roger bacon at the end of the XIII century invented glasses for the treatment of hyperopia, he was accused of conspiring with the evil spirit, because he believed that the glasses distort the reality.
In the early fifteenth century the great artist and scientist Leonardo da Vinci was able to explain the principles of lenses and glasses that allowed us to continue to create optical devices for various actions. Problems of optics were also involved in the Italian astronomer and physicist Galileo Galilei, Rene Descartes, Isaac Newton.
The first glasses were very expensive. Among persons of higher light lenses were used not only for vision correction, but also for decoration. Monocles, Larney and a pince-nez were decorated with precious stones and gold. Its popularity monocles, Larney and a pince-nez lost after the First world war. They were replaced by points.