The 2013 trends for perscription eyewear are staying fairly steady coming out of last year with some minor adjustments. If you are looking to update your glasses you might want to check some of these out.
Cat Eyes and Modified Cat Eyes are still a popular choice.
Geek Chic is still going strong so check out brands like Ray Ban or Persol.
The round Harry Potter like Panto shape is also in this year. Taking geek chic to the next level.
And for a fun flirty second pair glasses go for the translucent frames in colors like blue or burgundy.