2011年11月13日星期日

What Size Should You Buy for Your Eyeglasses?

When speaking of buying suitable eyeglasses, it will be very helpful to know what size of eyeglasses frame will fit you. Those eyeglasses frames are used for holding the lenses in place in front of the eyes. And only suitable eyeglasses frame can provide customers a comfortable wearing. If you ask what sizes eyeglasses should you buy, you shall first have a better understand what frame size includes and how read them so as to measure your frame size in the right way.

Eyeglasses frames always come in sizes and are accounted in millimeters. And the size of a pair of eyeglasses is not a single number. In detail, the size of a pair of eyeglasses frame includes lens width, and bridge distance, temple length, lens height and total width as the following pictures show you. 
frame size

 
And those numbers are usually imprinted on one of the temples or the bridge of the eyeglasses frame. However, there are often only three numbers such as 50-20-140. Most of people may be confused those numbers. In fact, those numbers often stand for lens size, bridge length and arm length respectively. In detail, the first number 50 stands for lens width which describe the precisely the distance between the vertical sides of the lens shape. Of course, different shaped lenses may have different size for a pair of eyeglasses. The second number 20 stands for the bridge size which is the minimum horizontal distance between the nasal surfaces of the rims and the third number140 stands for arm length which also called temple length describing the length of an arm or temple. Choosing the right arm length can fix your eyeglasses and prevent them from slipping down from your nose.

So, if you want to know what frame size you need for your eyeglasses, you shall prepare a ruler that is capable of measuring millimeters and then measure your old eyeglasses frame in the right way to get what frame size fit you. Then, you can use the frame size to buy a new pair of suitable eyeglasses or order them from online optical stores.


Article From:

http://www.newsunglasseslive.com/post/215.html

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