I got these glasses over ten years ago for my AGoT. Because of her brown hair, everyone mistook her for Molly when she wore them, and wouldn't believe me even when I pointed out Molly has grey eyes (Helen's are brown) and silver glasses! Ah well.
The glasses have stood up well against heavy play. They don't stay on too well now because the frame has become bent a bit wide for the head. The case was cheap red felt, and the elastic strap eventually broke. The lenses are a tough plastic.
I'd give these an A-, points docked for the cheap case.