The American gentleman of science, Benjamin Franklin, who persevered both myopia as well as presbyopia, invented bifocals in 1784 to obviate having to often alternate betwixt 2 pairs of eyeglasses.

The 1st lenses for correcting astigmia were constructed by the British astronomy expert George Airy in the year 1825.

In the history of benjamin franklin glasses, the building of pectacle frames also evolved. In early stages glasses were designed to be either held in place with your hand or by maintaining force on the bridge of the nose. Girolamo Savonarola advised that eyeglass lenses could be held in place with a ribbon placed over a person’s head, which in turn was held secure by the weight of one’s hat.

Entering modern bifocal history, the contemporary fashion of bifocal reading glasses supported by temples passing over the ears, was produced in 1727 by the British lens maker Edward Scarlett. These designs were not at once prosperous, however, and assorted styles with attached handles like “scissors-glasses” and lorgnettes stayed fashionable throughout the eighteenth and into the early nineteenth century.

In the early twentieth century, Moritz von Rohr at Zeiss made the Zeiss Punktal spherical point-focus lens system which dominated the eyeglass lens field for several years.

Despite the improving fame of contacts and laser restorative eye surgery, eyeglasses stay rather popular, as their technology has continued to evolve. For example, it’s currently possible to buy frames constituted of special memory metal alloys that return to their correct configuration after being bent. Other frames have spring-loaded hinges.

Glasses have come a long way, haven’t they? In fact, today you can even buy bifocal sunglasses.

Many of these designs are also distinctly better able to resist the stresses of day-to-day wear as well as the occasional accident. Contemporary frames are also ofttimes made from substantial, light-weight materials like titanium alloys which weren’t available in earlier days.