Who Actually Invented Bifocals? Like most of us, Franklin found that his eyesight was getting worse as he got older, and he grew both near-sighted and far-sighted. Tired of switching between two pairs of eyeglasses, he invented “double spectacles,” or what we now call bifocals. Did Ben Franklin really invent bifocals? Like most of us,
What Is The Purpose Of Bifocal Spectacles? Bifocals are eyeglasses with an upper and lower half, the upper for distance, and the lower for reading. Bifocals are commonly prescribed to people with presbyopia, a condition that Franklin suffered. Why did Benjamin Franklin make bifocals? Like most of us, Franklin found that his eyesight was getting
What Were The First Bifocals Made Of? Construction. Original bifocals were designed with the most convex lenses (for close viewing) in the lower half of the frame and the least convex lenses on the upper. Up until the beginning of the 20th century two separate lenses were cut in half and combined in the rim