eye flukes?

[Delphinus]

Yeah, sorry, I just have no experience with Paraguard so I have no idea what to say. If Seachem says it is effective against flukes I see no reason not to take their word for it.

One possibility is that your trigger HAD flukes while in QT, and this is just some residual scarring or abrasion.. if so, it should clear up on its own.

To my eye it is hard to tell the difference between a fluke and any opaque spotting on the eye. It's hard to tell if this is just an artifact on the photo but there are 3 suspicious spots on the picture other than the eye: right behind the right side pectoral fin, right in the middle of the dorsal fin, and right at the top in front of the caudal fin (the "tail"). It could be nothing but it's worth double-checking to be sure.

For now I would do nothing other than wait and observe. It could just be leftover from the previous treatment and eventually clears up on its own.