Contemporary Bifocal Reading Glasses

The American man of science, Ben Franklin, who persevered both myopia as well as presbyopia, invented bifocals in 1784 to obviate having to frequently switch betwixt 2 sets of glasses.

The first lens pair intended for rectifying astigmia were manufactured by the British astronomy expert George Airy in the year 1825.

In the history of bifocal reading glasses, the building of eyeglass frames also evolved. Early on oculars were contrived to be either kept in place with your hand or by maintaining force on the nose. Girolamo Savonarola advised that eyeglass lenses could be held in place with a ribbon placed over the subject’s head, which in turn was held secure by the weight of one’s hat.

Entering modern bifocal history, the contemporary fashion of bifocal eyeglasses 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 controlled the eyeglass lens domain for several years.

Despite the rising fame of contacts and laser restorative eye surgery, spectacles remain rather common, as their engineering 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 rimless eyeglasses.

Most of these modern contraptions are also distinctly better capable of resisting the challenges of day-to-day wear and the occasional accident. Contemporary frames are also frequently made from robust, light-weight materials such as titanium alloys that were not obtainable in earlier years.