Help! Firebelly Toad has Cloudy Eye, not responding to treatment

[hyla]

How is the frog? Are you certain it is not the normal membrane covering the eye making it appear cloudy?

[KayIS]

Positive. We've had this frog for years, and this is most definitely not normal. His entire left eye now is completely white-cloudy, and there is a prominent white dot towards the top of the eye. The vet saw him again on Monday, tried to stain the eye (to check for corneal ulcers) and then admitted he'd never tried this with a frog and while it looks like a corneal ulcer to him, he couldn't be entirely sure. The stain didn't hold on his eye, it washed off easily (which it is not supposed to do if there is an ulcer). We were thus sent home with more medicine, which he's had 3 days' worth of and I see no improvement. Maybe it is too early for improvement? He is becoming increasingly blind, though, because he is now spinning and having trouble moving around. I've removed all the potentially sharp objects out of the tank (including plastic grass and leaves) because he's likely to injure himself since he cannot see well out of that eye.

Other than the eye, the vet admitted the frog otherwise is healthy. His appetite is great, he just can't see all that well. He doesn't seem in pain or to be unhappy. He hates the eye drops, which have some atropine among other things, so i don't blame him. The eyedrops smell horrible. Other than natural daylight, I do not turn on any other lights around that tank so I don't stress him out or make his eye hurt from the bright light.

The vet is clearly just guessing, which is not good for us because he is the only herpetologist in the area - which is why I hope someone in Frog Forum can help me. Does this sound familiar to anyone? Any advice?