Have you ever buy 2 pairs glasses together online?

Black Friday's coming, and I saw many online shops are on sale. And buy one get one free is one of their favor.
What do you think if I buy 2 pairs of glasses together, just like this site:
http://www.glassesshop.com/all?utm_source=yahoo&utm_medium=ask_answer&utm_campaign=1122_ask_ssc
Will it be a waste, as my vision changes fast, I will need new glasses soon.

bluasakura2013-11-25T18:34:15Z

Favorite Answer

I have and you need your pupillary distance measured and you type that and 3 other numbers per eye in. you still need to have your glasses adjusted to fit your face. I know my size and I have done this but it is about a 50/50% at best chance.