In 1268, Rogier Bacon recorded the earliest A lens for optical purposes. At the same time, however, the magnification lens used to mount the lens into the frame has been used for reading in Europe and China. There has been debate about whether glasses are introduced to Europe from Europe or China. In Europe, the earliest glasses appeared in Italy, introduced by Alessandro di Spina of Florence. The earliest portrait of the glasses "Hugh of Provence" was drawn by Tommaso da Modena in 1352. Before the Song Dynasty, China had already appeared in the shape of glasses.
It is said to have been invented by an optician named Almato and an Italian who lives in Pisa.
American inventor Benjamin Franklin, suffering from myopia and hyperopia,
In 1784, the near-sighted dual-use glasses were invented; in 1825, the British astronomer George Avery invented glasses that can correct astigmatism. Some people think that the Chinese invented glasses before 2000, and in the middle of the Ming Dynasty, China had glasses. Ming Wanlitian geisha in the "Remaining Youth Day" volume two "叆叇" article: "Every time I read an article, my eyes are dim, do not distinguish fine books, so as to hide my eyes, the spirit is not scattered, the strokes are clear. It is bound to the back of the brain, people do not know, to ask for more. Yu Yan: This is also the case." At this time, the initial name is called.