as expected, the vet said there wasn't anything to be done. she had seen something like this before in reptiles and said that it has been known to resolve spontaneously or with steroid ointment, though no one was sure what caused it. since his visions seems unaffected, she wants to see what happens before adding steroids (which i agree with). she was much more knowledgeable than i expected and seemed to truly be somewhat of a specialist on reptiles and amphibians. anyway, we'll see what happens.