Measure 5.25 inches across the top

5 inch arms

Approx 1 inch at the widest part of the nose piece

Approx 1.75 inches at widest part of each lens

These are a pearly blue with yellowing from age

They feel quite sturdy, there is no maker's mark that I can see

The prescription lenses are quite strong (I personally am 20/200 in each eye and these take most of the blur away)

My best thought is they are for nearsightedness