If you’re like me and can’t quite make out that big E on the eye chart from 5 feet away without vision correction or even if you’re not quite that bad, this post is for you. Probably everyone that wears vision correction has thought about having a backup, but what about 5 backups? One backup is great for if you break or lose your glasses/contacts, that’s a great prep to have. But what if we’re in a TEOTWAWKI situation and you can’t get new glasses at all for a very long time? It costs a lot to get replacement glasses and it’s a huge investment – usually – now enter Zenni Optical.