If you've looked at the other threads, it seems that cloudy eye is most commonly associated with bacterial infections, hence all the gentamicin. Maracyn acts on gram positive bacteria, gentamicin sulfate works on gram negative bacteria (and some gram positive), so there is a big difference here. The prescription for my frog is a 0.3% opthalmic solution USP gentamicin sulfate, one drop twice daily fo 7-10 days, although you can see I've been at it quite a bit longer. Maybe you can convince a local vet to get this prescription for you, or find it on the internet. Also, you could try dosing it into the water and having your frog sit in it, since they absorb water through their skin. I wouldn't know what the dose is, it depends on the frog's weight, and if you aren't careful you can kill your frog. Ever try contacting the biology department of your local university? If you're lucky, you'll find an amphibian specialist who can help you and point you in the right direction.

I wonder if you don't treat the eyes whether it will progress to that horrible opaque stuff. I would not have done all this vet stuff if the eye was simply cloudy and wasn't affecting his life. Being blind on one side is a serious thing. Fortunately, he'll never starve, since we hand feed him anyway.

I've also read that cloudiness may just be a sign of aging in certain kinds of frogs too, although i can't find any verification that this is correct.

Good luck.