Glasses are a combination of lenses and frames, which are used to improve vision, protect eyes or for decorative purposes. Glasses can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia, strabismus or amblyopia.

Glasses consist of lenses and frames. There are 15 kinds of myopia glasses, hyperopia glasses, reading glasses, astigmatism glasses, flat glasses, computer goggles, goggles, night vision goggles, goggles for e-sports games, sunglasses, toy glasses and sunglasses. There are also special glasses for viewing 3D stereoscopic images or virtual real images.

Other types of glasses include goggles, sunglasses, goggles, etc. , providing various protective effects for the eyes. Modern glasses usually have a nose pad in the middle of the lens and a cushion where the left arm and right arm rest on the ear. People who love beauty or are not used to wearing glasses can choose to correct their vision with contact lenses.

Industrial formation

In the history of our country, with the development of individual handicraft industry, the materials used in glasses have changed from natural crystal stone to glass, and the scope of use of glasses has begun to spread and expand to the people, and the manufacturing technology has also made new progress.

China Gusu (Suzhou) is the birthplace of China glasses. Suzhou's glasses production not only has a long history, but also plays a great role in promoting the development of China's glasses industry. In the early years of Chongzhen in Ming Dynasty (AD 1628), an outstanding technician Sun was born in Wujiang. He has been studious since he was a child. At that time, it was painful for him to see people with poor eyesight, but it was inconvenient to use "single lens" mirrors and the like.