Names on Eyeglasses

What is to prevent you from writing your name on the frame?

He cant see without his glasses.

Depending on the width of the arms of your glasses, you could have someone engrave your name and phone number into the inside side of the arms.

Merry Andrew-
The surface of the eyeglass frame does not absorb ink.

tsarstepan-
Who is the someone who does such work?

Any jeweler should have the proper equipment. It's a good idea based on how much glasses cost today. I would not think to look for ID, but maybe you can start a trend

In the old days, you used to be able to go to the police departments locally and borrow their engravers to mark valuables for insurance purposes.

Go to a local jeweler and ask him/her to do the work for you.