The glasses chain has two hooks, just fasten the hooks on the temples, put the chain on the neck from the back of the neck, and put on the glasses. The glasses chain is mainly to prevent the glasses from being accidentally dropped. Of course, it also plays a decorative role. However, few people use it now. Now everyone wears color lenses or glasses, and almost no longer uses the glasses chain.

The glasses chain has a non-slip effect, which is to prevent the glasses from suddenly slipping off during the process of wearing glasses, so it is safer to wear glasses. In fact, when wearing glasses, it is not suitable for large-scale activities, such as running. , you can take off your glasses to prevent them from falling off when you wear them.

Glasses are composed of lenses and frames, which are divided into four types: myopia glasses, hyperopia glasses, reading glasses, and astigmatism glasses. Young people wear myopia glasses more. For myopia, myopia glasses are indispensable. Glasses chains were more popular a long time ago, and now young people almost don't use glasses chains, while glasses chains are mostly used by old people wearing presbyopic glasses.

Generally, in order to prevent the glasses from falling, the elderly will buy glasses chains to use. The elderly are older, and the glasses may fall off when wearing glasses, and the glasses chain plays its role.