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They all think it was invented by foreigners, but in fact, it probably appeared in China a thousand years ago | #eyeglass online

They all think it was invented by foreigners, but in fact, it probably appeared in China a thousand years ago

They all think it was invented by foreigners, but in fact, it probably appeared in China a thousand years ago

Glasses are lenticular lenses embedded in a frame that are worn in front of the eye to improve vision, protect the eye, or for decorative purposes. Glasses can correct a variety of vision problems, including nearsightedness, farsightedness, astigmatism, presbyopia or strabismus, amblyopia,