These years, who are wearing eyeglasses, maybe seemed to be a nerd. These ‘nerds’ always strained their eyes with too much study. Or you were getting really old and got farsightedness. Prescription glasses become more popular than ever as a fashion accessory as much as a function necessity, Today visiting an Optometrist is considered to be as routine as visiting the dentist. Right from children to adults, everyday more people are in need of visual aids. Whatever be the reason for wearing glasses, it is accepted as a tool and an aid.

Today, wearing glasses is one trend of modern life. With the advances in tech and sciences, there are a lot of choices available when it comes to wearing glasses. Plastic and glasses lenses are the two common kinds of lenses. Almost everyone today prefers wearing plastic lenses in their glasses for practical purposes such as avoiding breakage and scratching and having lighter glasses to wear. However this wasn’t always the scene. There was a time when glasses were heavy and cumbersome. In fact there was a time when glasses were everything that glasses today are not.

How do the glasses develop? Who invents this? May be a lot of people don’t pay attention to it. Around 8th century BC, Egyptian hieroglyphics depict simple lenses. In the 1st century AD, records show that Nero watched gladiators through an emerald, and his tutor records how using a globe full of water through which to read letters, no matter how small enlarges them. In the 9th century, Reading Stones were invented by Abbas Ibn Firnas. These were glasses that were highly polished and shaped into round rocks and could be used to read. As early as 1021 AD magnifying glasses with a convex lens were developed. In the 12thcentury in China, flat pieces of quartz were used to protect the eyes, and were probably the earliest types of sun glasses.

The question who first invented glasses is still a continued confusion. It is lack of records. But it’s definite that the reading glass was developed in the 13th century. Even though technology wasn’t as advanced in the 13th century as is it now, the early reading glasses had convex lenses and later on concave lenses to help in nearsightedness and farsightedness. However it was only in the 17th century that an explanation about the functioning of convex and concave lenses was given.
Benjamin Franklin invented the bifocal lens in 1784 as a result of being tired of shifting between 2 pairs of glasses for his myopia and presbyopia. In the 18th century, European fashions changed, and reading glasses were worn on ribbons and lateral handles and often used as a fashion accessory. The modern style of glasses was developed in 1727 by Edward Scarlett.

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