gramma has swollen eye

[Argentiner]

I agree with Dez. My squarespot anthias had his eye all swollen about a month and a half ago and everything I looked up said to just leave it, keep the water quality good and it will go away. Took maybe a week or so and it was back to normal. I think as long as it's clear, it's probably from them scratching or hitting it on something. If it's all cloudy, you might have to treat it with something.