I hate those frames, too. She has two pairs that are both too big and ugly - those plastic ones and another wire-rimmed pair.
I've noticed a lot of people wearing oversized glasses lately. Kitra from Ordinary Adventures, who I otherwise really like, wears those oversized 1980s glasses. To me, it looks like: "Ooh, look at me with my big glasses! Aren't I just SO nerdy?!?" Is this the style right now? I really thought that as I got older I'd get upset over the style of jeans, but I never expected to get grumpy over eyewear.