These different glasses and lenses

All, of course, know the monkey Krylov, "old weak eyes became" and decided to buy a half a dozen points. Well, and how it ended, also it is well known that the animal was disappointed in the latest inventions and never regained vision. We are not monkeys, of course, but glasses sometimes don't either. Sunglasses choose, for instance, because they have a rim of bright pink and the rhinestones, and all other distinguished only by its form and value. Our eyes, however, this attitude will not be tolerated, so let's try to understand the variety of glasses and the popular contact lenses.

So, to wear glasses is the easiest method to improve Your eyesight. Remember how it was before? Four-eyes in the eyes of others is definitely a bookworm and a nerd. But this stereotype, thankfully, sank into Oblivion. Now the choice of shapes and frames are so wide that this very simple optical device has evolved into a fashion accessory. If they choose wisely, they will decorate any man, almost a Prince on a white horse (a variant – the Princess in the crystal shoes) will make out of it. In General, now do not be shy, if you want — they even can be proud of. My best friend has to work a regular "glass". They have no effect on vision, but, in her opinion, make the look business woman more respectable and intelligent.

But except for this original of their application, it turns out that the destination points are of two types. Corrective correct vision defects and return You all the colors of the world, and the protective protect eyes against radiation, dust, action of chemically aggressive fluids and environments. Correcting spectacles, in turn, are divided into glasses for Dali, for continuous wear for work. So if You've decided to say "no" to the instruments of the surgeon and contact lenses, but still want to correct the vision, some points can not do.

Of course, all the necessary details and trivia, You should definitely tell and describe in any opticians. But in order not to see their consultant as an alien, talk about the laws of the universes existence, you need to have at least some basis for the "spectacle" of knowledge.

If You are starting to scare words "mineral" and "organic", don't panic, in fact it will be only about glass and plastic eyewear lenses. Glass glasses have two main advantages: they are difficult to scratch and, compared with plastic, they exhibit better optical properties. Once the main "drawback" of glass was low resistance, but now this problem is solved: invented the technology of chemical hardening glass lenses. So to objectively determine which is better – glass or plastic – is quite difficult. I can only say that in our country leading in sales positions are glass spectacle lenses, but plastic is coming close behind.