The History of Sunglasses

Written by Tim Gorman

Did you think that sunglasses were always used to protect our eyes fromrepparttar sun? Well if you did, you are most certainly mistaken. The first reason why they darkened glasses was because of smoke tinting, which was held in China before 1430. It was so far back in time, that of coarse their glasses were not of any prescription, and they were not used to protect your eyes fromrepparttar 146453 sun. The Chinese judges had often worn sunglasses with quartz to hiderepparttar 146454 expression in their eyes while during a court case.

It was only untilrepparttar 146455 actual year of 1430 that prescription sunglasses came about in China fromrepparttar 146456 fair country of Italy. The sunglasses from Italy were also obviously darkened, but they were darkened for court cases as well.

The experimentation of tinting lenses came from a man named James Ayscough inrepparttar 146457 18th Century. He as well, did not seek sunglasses as protecting your eyes fromrepparttar 146458 rays ofrepparttar 146459 sun, but forrepparttar 146460 correction of vision impairments.

Sunglasses: Which Lens to Pick

Written by Tim Gorman

Believe it or not, sunglasses come with many different lenses, which will offer you different kinds of protection. Your local eye doctor can help you pick out a lens that would be best for you to protect your eyes from different harmful elements such asrepparttar suns UV rays.

One ofrepparttar 146452 lens options is called a Blue-Blocker. These lenses do just as they say. They block any sort of blue light. Usually Blue Blocker sunglasses will come in an amber colored lens. It is not sure whether blue light is harmful or not, so these sunglasses are not imperative to your eye safety, but they are always great to have around!

There are other lenses called Mirror-coated lenses. This kind of lens will limitrepparttar 146453 amount of light that goes into your eyes. This is a lens that is designed more so for comfort.

If you get sunglasses with a Gradient Lens, you will find yourself with a pair of sunglasses that are tinted allrepparttar 146454 way fromrepparttar 146455 top torepparttar 146456 bottom. The top ofrepparttar 146457 lens isrepparttar 146458 darkest, andrepparttar 146459 middle has a clear look to it, while going back torepparttar 146460 darkest shade atrepparttar 146461 bottom ofrepparttar 146462 lens again. It would be wise so that you did not drive while wearing a Gradient lens.

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