My betta had Popeye in one eye about a week ago, and her eye is back to it’s normal size but it’s still white. She does not seem to be able to see through it. There is one other fish in the tank, a Cory catfish, who she bites occasionally. There is also one snail. I used BettaFix to treat the Popeye. Is Coral permanently blind in that eye now, or is there something I can do?