The green part of the glasses worn for a long time is located in the metal position of the connecting part between the two brackets and the glasses on the bridge of the nose. This is because this part of the metal core is made of copper, which contains copper. Copper will react with oxygen, carbon dioxide and water in the air to form copper rust, which can be expressed as grass green monoclinic fiber clusters or dark green powder. People who wear glasses for a long time will produce green substances, that is, copper rust.

Pay attention to your health

Protection of glasses

1, taking it off with one hand will destroy the left and right balance of the spectacle frame, resulting in deformation. I suggest you hold your temples with your hands and remove them in parallel on both sides of your cheeks.

2. Generally, when wearing, fold the left temple first, which is not easy to cause deformation of the frame.

3. It is suggested to wash glasses with clear water and absorb water with paper towels, and then wipe them with special glasses cloth. It is necessary to hold the edge wire of the mirror frame on one side of the wiping mirror and gently wipe the lens to avoid damaging the mirror frame or lens with excessive force.

When you don't wear glasses, please wrap them in glasses cloth and put them in the glasses case. If temporarily placed, please put the convex surface of the glasses upward, otherwise it is easy to wear out the lenses. At the same time, glasses should avoid contact with insect repellent, toilet cleaning supplies, cosmetics, hair gel, medicines and other corrosive substances, and avoid long-term direct sunlight and high temperature (above 60℃), otherwise it will easily lead to deterioration, deterioration and discoloration of lenses and frames.

5. Go to the specialty store regularly for plastic adjustment. The deformation of the mirror frame will burden the nose and ears, and the lens is easy to loosen.

6. Please don't use glasses during strenuous exercise, so as not to break the glasses due to strong impact, causing eye and face damage; Do not use worn lenses to prevent vision loss caused by scattered light; Please don't look directly at the sun or glare, so as not to hurt your eyes.