What is the blue foreign substance of the eyeglass nose pad?

If you wear glasses for a long time, you can see green rust on the nose of the glasses. 

I don't see it every time, and when I check it out one day, I often see it. Especially when it comes to gold-rimmed glasses. It's a very sensitive part.  What's this? 

What is this?

 

This is rusty. The reason for rust is that the water in the glasses does not dry well. Especially in real life, you sweat and get wet in the rain. That's why this oxidation has become rusty. 

Even if you know this, it is very difficult to manage your glasses. People with poor eyesight will have trouble managing their glasses because they don't take them off.

So is there no way to manage it? No. There is a management method.

How?

Once rust has begun, it is not easy to manage. Especially in summer when you sweat a lot, it's really hard. Avoid getting as sweaty as possible.

Impossible?

Then you will have to wash your glasses clean under running water. If you look closely at the nose pad of the glasses, you can undo the screw. However, be careful not to lose the screw.

Did you wash it clean? Then you have to dry it well. Dry it up in the sun. Dry it so that there is no water left. It's the only way.

And glasses also have a lifespan. It is recommended not to use for more than two years, and if you was used for a long time, make sure it is not rusty.

Replace it if it is rusty as a whole. Or just replace the eyeglass nose pad. It's possible. Please be healthy. Treat your glasses carefully.