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Glasses for many people feel is a very wasted time thing, aside frame choice, it would just kind of cheap mac cosmetics makeup kit wholesale lens on the people I do not know how to choose. Faced with shopping guide Miss tirade did not know is true or false. Today, we take a look at it and How to choose your own lenses.

Glasses lens

Select glasses lens, you first need optometry, let a professional optometrist tested using computer equipment, and then use the eye chart in the review it, to determine the exact degree of your own, if you have astigmatism, be sure to add. Second, we must distinguish between the lens material, lens materials are glass, resin sheets and PC tablets (polycarbonate sheet) three. The main drawback is that the lens heavy glass lenses, especially in high myopia film, resulting in Fake Oakleys Gascan Sunglasses Cheap for Sale glasses and ear pressure on the bridge of the nose in patients increased significantly, wearing glasses often can not be tolerated. The latter two because of its light texture, plasticity, and other characteristics, widely used in recent years, accounting for the absolute share of the lens market. High myopia sheet to select the latter two is appropriate.

Select glasses lenses, but also pay attention to the refractive index. If your degree is not very high, at 400 degrees, the general with a refractive index of 1.56 radiation resin coated lenses on it. If you are a little high degree of below -600 degrees, with a refractive index of the aspherical lens is 1.61 is better, the better the imaging lens, the lens is relatively flat surface that is not prone to the difference, depending on the material more clearly. If your degree of not less than 800 degrees, preferably with a refractive index of 1.67 or 1.74, such thinner lenses after wear, will be much lighter weight, but also a lot of appearance. There is a slightly smaller Tiffany and Co Charm Bracelet Jewelry Outlet frame selected, so that better.

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