Powder Blue Eye Issue

[LiveWire]

Can anyone let me know what is going on with my Powder Blue? This white spot developed awhile back when I first purchased this tang and it went away not long after. Now it is returned. It does not seem to be bothering the tang much as he is eating and doing his normal thing. I don’t want to move him if I don’t need to. Doing that would just cause Him stress. It’s only on the one eye and besides that he looks fine. He is fed rods frozen food as well as Nori so I doubt it’s his diet causing the issue.
Thank you in advance.

 

[Big G]

Usually with one eye it's more likely that it is an injury than flukes or bacterial infections as they usually manifest in both eyes. Does your PB wedge into the rocks at night to sleep?
If necessary, a bath in methylene blue can help with injury. If there is swelling, you can add 1 tablespoon of plain Epsoms salt per 5 gallon of tank water. Can re-dose this once the next day or so.
If the injury gets infected, look for redness or white-film in the area, Erythromycin is great for eye infections. And since your PB seems to have this recurring, it might be a good idea to have some on hand.
Beautiful fish.

 

[LiveWire]

Thank you Big G! He does tend to sleep in between things and tends to hide and wedge into areas when others come by the tank. Let me see what I can find at my LFS.