"Wow, you look smart."
"Why don't you wear contacts?"
"Have you considered LASIK?"
"When did you start wearing glasses?"
"Can you see how many fingers I'm holding up?”
"Can I wear your glasses?"
"Can you see without your glasses on?"
"Your glasses make you look older!"
"Are those real?"
"Oh, I know someone else who has astigmatism!"
People who wear glasses aren't mean and foreboding, but there are certain phrases that just get very, very tiring after a while. Check this list before asking a question.