You can get replacement prescription glasses starting at $8 (plus $4.95 per order) from - http://zennioptical.com. I have been using them for years and they are great! I have two $8 dollar pairs: one for reading and one in my car. I have two $20 pairs: one for my office and one for home. I have a $40 pair (titanium) with my bi-focal prescription but I do not use them any more. All of the glasses are great. The $20 dollar pairs are nice as they have the nice hinges.