While mentioning eyeglasses, most of us will neglect eyeglass frames. The reason lies in the fact that only few of us have realized the importance of frames in the evolution of eyeglasses.
As it is known, the earliest eyeglass has made its first appearance over 7hundred years ago. Therefore, it seems that the history of the frames is of the same longevity. In fact, the emergence of the first frame is much later than eyeglass. The data has showed that there is no frame in the original eyeglasses and people use hands to hold the glass while using. Later, some people find it is inconvenient to use glass without anything to support. Therefore, some ribbons are employed in the manufacturing of the eyeglasses and the glass can be tied up to the forehead of wearers.
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