We just picked up Catherine's first pair of glasses today (with about 3 months to go until their third birthday). The glasses survived the day without breakage! Actually she was pretty good about having these weird things put on her head. I only found them once forgotten on the floor after she had apparently discarded them. Unfortunately they blend in with the carpet so they'll be easy to step on.
Like everyone told us, she seems to do okay with them! I suppose being able to actually see things close up is a big positive change for her, though she can't really express it.
And yes, they magnify her eyes a lot. I'm thinking that since "Men don't make passes at girls who wear glasses" we can keep buying her really ugly glasses until she's about 25.
I Googled that Dorothy Parker quote and found something about Elizabeth Dole needing glasses at age 3 and her mother weeping about it. How strange.