Question

Who invented bifocal glasses

Answer 1

Bifocal glasses were invented by Benjamin Franklin around 1784 to correct his vision problems by combining two different lens prescriptions in one frame.

Step-by-step explanation:

The invention of bifocal glasses is attributed to the American polymath Benjamin Franklin. Franklin is believed to have developed bifocals around the year 1784 to correct his own vision problems, combining lenses for distance and lenses for reading into a single frame.

This innovative creation allowed for a seamless transition between different types of lens magnification, catering specifically to individuals with presbyopia who require one prescription for close work and a different one for distance viewing.

Answer 2

History of bifocals and trifocals

Benjamin Franklin, the early American statesman and inventor, is credited with creating the first multifocal lens for eyeglasses. Prior to Franklin's invention, anyone with presbyopia had to carry two pairs of eyeglasses — one for seeing distant objects and one for seeing up close.