Hey, glad the eye sorted itself out. I've had this happen with my BPs too, and I'm also a stickler for keeping my husbandry in check. I even feed both my BPs wet prey.
So it can happen, but in my experience it always plumps back up in no time. The first time it happened I kinda beat myself up, as if I did something horribly wrong. But turns out even with proper husbandry it can happen.