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.
These eyeglass lenses are unlike typical lenses, which are spherical in shape. Aspheric lenses are made up of differing degrees of curvature over its surface, which allows the lens to be thinner and flatter than other lenses. This also creates an eyeglass lens with a much larger usable portion than the standard lens.