After 37 years, Carney received the Medal of Honor on May 23, 1900, for his heroism during the assault on Fort Wagner. When Carney died in 1908, the U.S. flag flew at half-mast at the Massachusetts State House. See the Library of Virginiaâs entry on William Harvey Carney.
Disadvantages. 1  Glass is the heaviest material used in the manufacture of lenses so eyeglasses with glass lenses will be the heaviest. If you have a larger frame type, will leave marks on the nose due to pressure. 2  Thickness of the glass lenses: if you have large diopters lenses will be thicker.
The majority of these eyewear frames are manufactured in China. Approximately 95 percent of eyeglass frames are made outside of America with more than 90 percent produced in China, the land of inexpensive labor. The Luxottica Group, based in Milan, Italy, controls more than 80 percent of the worldâs major eyewear brands. It is believed that eyeglasses originated in Italy because of the the abundance of Zyl, a cellulose acetate that is a vital component in producing durable plastic frames.