How interesting! Kisses to little Wendy.
her full sister Tia (from Corrie and Byron's third litter) developed a bulging eye very early in life. it kept getting bigger, the lens got luxated (not sure of the right term here), and my vet finally removed it because we were sure that eventually it would get too big for her to close it. The vet was not sure what could have caused it; he called to consult an exotic vet about it, but not much seems to be known about eye problems in ratties.
Tia does fine with just one eye. I really debated about the surgery because of the potential risk, but did it because i was concerned it might be painful and because I didn't want to risk it bursting during a minor injury.
So Wendy's eye could be from an injury, but the myco theory is interesting. Tia had a bad bout of myco after her eye had already enlarged.
Hope little Wendy is OK without surgery. :tumkiss: