Originally Posted by
rickztahone
Move the fish to QT, and keep up with the daily water changes. Make sure to take some colonized BB w/ you to the QT tank unless you are going to medicate. This does look like a bacterial infection however resulting from a scrape to the eye.
I had a discus that this happened with and it lost its vision in that eye. I did not treat the discus and I am not sure how you treat an actual eye damage, but clean water and maybe a small bit of salt may help.
If you are seeking meds advice, i'd ask Al or Rick, they are the ones I turn to WRT bacterial infections.