Bifocals are eyeglasses with two distinct optical powers. Bifocals are commonly
prescribed to ... Benjamin Franklin is generally credited with the invention of
bifocals. Historians have produced som...
It presented Benjamin Franklin as the inventor of bifocals. It is still considered the
definitive paper on this topic because no new information has surfaced to the ...
Benjamin Franklin's inventions, innovations and discoveries including the kite
experiment, Franklin stove, bifocals, armonica and more.
Nov 6, 2013 ... Ben Franklin Spectacles - As Benjamin Franklin aged, his vision, which had
never been great, deteriorated even further. Like many of the ...
Bifocals. bifocals. College of Optometrists. A modern replica pair of the type of
split bifocal spectacles known to have been worn by Benjamin Franklin in the mid
Aug 30, 2013 ... Facts Bifocals were invented in 1784, when Ben Franklin had trouble seeing both
close up and far away. Franklin had two pairs of spectacles ...
Benjamin Franklin invented bifocals in 1784. As announced in a letter to a friend,
he called the new invention "double spectacles." The glasses allowed a person ...
Jul 7, 2016 ... Benjamin Franklin is credited with inventing bifocals, although evidence suggests
he may have been simply an early adopter of the split-bifocal ...
US statesman Benjamin Franklin has long been credited with the invention of
bifocal spectacle lenses, but whether this is historically accurate or merely a myth
Jul 22, 2005 ... When you think of medgadgets, maybe eyeglasses don't spring to mind --
probably because they've been around so long, and are so prevalent ...