After the lens is used for a period of time, the lens will be easily worn, and how to repair the lens after scratching, the steps are as follows:
1. Toothpaste can be wiped with a little toothpaste on the rag and wipe the scratched area on the lens with a cotton cloth.
2. Always wipe in the same direction and wipe with water after three minutes.
3. Wipe with soap. Wet the lens of the glasses with cold water and rub some soap on your fingers.