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In the very beginning shortly after the invention of eyeglasses, they were regarded as merely optical instruments to improve eyesight during the11th century; later Benjamin Franklin invented bifocal eyeglasses, which were an important breakthrough of the optical industry; and now eyeglasses have become kind of daily necessities that combining the effects of eyesight-correcting, beauty-improving and cosmetic ornaments together for us common people. We can get this conclusion easily if we pay attention to the various styles, materials and colors of eyeglasses now sold in the market. Today we must admit the fact that now eyeglasses are not merely instruments which help us see the world clearly, but also the vivid symbols of the fashion culture. |
