I have aquired the African Bullfrog that I hope is in this picture. It is around 3 years old and has never had an opening eye on its right side (the person I got it from had had it from a very small froglet). It eats fine and is perfectly healthy, so I am not concerned but was wondering if anyone has come across this before. There is clearly an eye like structure under the skin that moves perfectly normaly when it swallows.