Found these searching for a microfiber cloth for my new glasses.

I'm wondering how safe these are for today camera gear, and also my new glasses. The cleaning paper is completely white and clean and what I think is a microfiber cloth was unopened and also unused. Both were stored very well.

They were among random camera and videocamera gear from my dad and I assume they were either his of his dad's, so they are at least 40 years old. I remember I had these when I was looking for my old microfiber cloths. I used to wear glasses but took a break because I didn't feel the need for them, but recently my vision has been getting worse so I got new ones and realized I didn't get a cleaning cloth with them.

Are these still good safe to modern optics?

/r/photography Thread Link -