Freely of the improvement of optical lenses, some cultures
developed "sunglasses" for eye protection, besides any corrective
properties. Thus, flat panes of smoky quartz, were used in 12th-century China.
Similarly, the Inuit have used snow goggles for eye protection.
In Europe eyeglasses initially showed up in Italy, their
acquaintance being ascribed with Alessandro di Spina of Florence. The
fundamental illustration to exhibit eyeglasses is that of Hugh of Provence by
using Tommaso da Modena, painted in 1352. In 1480 Domenico Ghirlandaio painted
St. Jerome at a work area from which dangled eyeglasses; subsequently, St.
Jerome turned into the supporter holy individual of the scene producers'
The most punctual glasses had curved lens factors to assist
farsightedness. A curved lens for nearsightedness, or partial blindness, is
first clear in the picture of Pope Leo X painted by Raphael in 1517.