HOw long did you have it in what size tank? Tankmates?
Is it just cloudy eyes? ot is it accompanied by other symptoms?
I tend to notice marine Ich and Amyloodinium are accompanied by cloudy eyes sometimes?
I dont exactly know what these white lines your mentioned but many occassions, Ive seen unusual colration on fish in trouble.
Any pics/vid? I wont ask about water conditions as most marine tank with LR and/or stable system should not have problems with water but wont hurt to test if you havnt done it for a while.