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Some Special Kinds of Prescription Eyeglasses You May Need to KnowToday people may have various kinds of eye problems, for example, short-sighted, far sighted, or astigmatism. So they need to wear prescription eye glasses in order to correct their visions. With the help of prescription eyeglasses, people can live a easier live, no matter short-sighted people or far-sighted people, they can all see things clearly. People now are all inevitable to face the problems of eye problems. However, they can go to their optometrist to solve their eye problems. To people who have severe vision problems, prescription eyeglasses which are made of high index material are quite important, for they’re much lighter than other prescription eyeglasses which are made of normal materials. Heavy prescription eyeglasses can always bring burden to people who wear them. Aspheric lenses are a great option for people who have really bad eyesight. For these prescription eyeglasses with aspheric lenses are thinner and more flat than other prescription eyeglasses. Such kind of eyeglasses can make your face look more normal, and relief burden from your nose and ears. As we all know, prescription eyeglasses are all very expensive, so the coatings on the surface of the lenses are really necessary. Nowadays there are quite many kinds of coatings sold on the market, for example, anti-scratch coatings, anti-reflective coatings and anti-UV light coatings. They can protect your glasses from the damages of scratching, reflection, and UV light. So you can use your prescription eyeglasses for a longer time. What’s more, there is a kind of prescription eyeglasses which are photochromic. That’s to say, when you are under the sunshine, the eyeglasses lenses appear to be dark, while you are in a house which is not so bright, your prescription eyeglasses lenses will become clear. Shortly speaking, the color of the lenses changes according to the environment. As for people who are both far-sighted and short-sighted, multifocal prescription eyeglasses may be their right choice. For multifocal lenses, there are typically three kinds: bifocal lenses, progressive lenses, and trifocal lenses. With these kinds of prescription eyeglasses, people have eye problems can see things clearly. With the development of new techniques, we now have more choices about prescription eyeglasses than before. Apart from all the examples mentioned above, there are still many other special kinds of prescription eyeglasses which are bringing great convenience to our daily life, we no longer need to worry about our eye problems. |
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