After looking at the pictures I must say that does look like MBD but only a trained exotics vet can make that diagnosis. As far as UVB goes I have heard from some keepers that it can adversely affect albinos but I don’t know if there is any science to support it. I personally do not use UVB on any of my frogs because there is little evidence to support its use at all. The type of bulb you use and the distance from the animal determine the amount that comes into contact. There are lower output bulbs available that should have the distances and output listed in their paperwork.I only mentioned it as a last resort for an obviously sick frog otherwise I never typically recommend it.