Leuc Rat with strange pupils (not bug-eyed)

[SixSnakes]

Whats a heat fluctuation issue...like when he was in the egg or now? I do love this lil guy more than anything and he's fairly laid back for a texas rat.

When he was in the egg. Perhaps a temp drop or spike caused the mutated pupils. He's a looker, non-the-less.

The only other possibility is genetics.