Eyeglasses

Eyeglasses (U.S), glasses or spectacles (also more rarely cheaters) are pieces of glass or clear plastic, called lenses, that are held in front of a person's eyes by a frame made of metal or plastic. They can be used for many reasons. These include safety, fashion and to correct a person's vision. The earliest known eyeglasses are in the thirteenth century in Italy.^[1]

1. ↑ Ilardi, Vincent (2007). Renaissance Vision from Spectacles to Telescopes. Philadelphia: American Philosophical Society. ISBN 9780871692597.