^yea then you got much less options. thats a side affect of buying cheap goggles. if you want something with a nicer lens (whatever lens you are looking for, i don't know) but i would buy new goggles. i hate to tell you that, but thats what it comes down to.
there are some cheap ones that you can get on sale, but to be perfectly honest, i would just roam around the b/s/t forum and look for goggles. i got a pair of murdered spy soldiers in pretty good shape for $40. the searchbar kinda sucks to use, but if there is a goggle out there that you want in particular, just search for it. otherwise, roam the internet for deals, maybe check out tramdock.com or whatever those websites are every now and then to try and get lucky.
but go to b/s/t - you will find some good deals. i'm always trolling around in there tryin to find something sick. if i find a cheap pair i might post them up if i'm not lazy, but i probably won't, so just look their.
damn thats a lot of words. get new goggles if you are unhappy with your lens, because they only make 2 lenses for your goggles.