When buying glasses, there is usually a piece of cloth in the glasses box. I thought it was used to wipe the eye lenses, and it has always been so dry.
Later, I heard that the cloth was not suitable for wiping glasses and would scratch the lens. It was only put to protect the lens from damage.
To this end, I also checked the information. It's true: the glasses cloth presented by most stores is only used to reduce the friction between glasses and boxes. The texture of these glasses cloth is relatively rough. Over time, it will attach a lot of dust, which will cause damage to the lens when rubbing with the glasses. So even if you just put the glasses cloth in the box for cushioning, remember to wash it often.
The friction between rough spectacle cloth and clothes will scratch the lens and affect the line of sight. Wearing glasses with damaged lenses can easily lead to eye fatigue and even astigmatism.
Correct use of spectacle cloth:
First, the glasses cloth can be used to wipe the glasses, but it is not used to wipe the dirt on the glasses, but to wipe the water on the cleaned glasses.
Second, the new mirror cloth should be washed, desized and dried before the first use, and the effect is better.
Third, the glasses should be diluted with warm water + detergent and cleaned, and then the glasses cloth should suck up and wipe the water in one direction without rubbing back and forth