All you need are reading glasses, (preferably with a wider plastic frame because it won't work on thin metal ones) and paint pens. It's easier if you have the narrow tip ones since the space is so small.
You can go crazy with the colors and designs or you can go more understated which is what I prefer.
I have probably 6 pairs of these spread out here at work so I have one at hand wherever I'm working. Of course they always seem to disappear, but God forbid I start wearing them on a string around my neck! If I do that you will hear me wail "I've become my mother!" clear to China.
Peggy ~ Goodgosh ~ GG