It is said that the Roman emperor Nero liked to watch gladiator fights with emeralds. These, however, appear to have worked rather like mirrors.[2] Flat panes of smoky quartz which offered no corrective powers but did protect the eyes from glare were used in China in the 12th century or possibly earlier. Contemporary documents describe [...]
Posts under ‘glasses’
Blog: How to maintain sunglasses?
The dazzle beautiful suglasses
