Couple things here before you panic and make things worse...(could happen :thinking: )
Lions are not really "ich prone" although they can get it...They do have a "line" of white spots down their "lateral line" (side of fish) and those are normal...
Be sure he has ick before "treating"...
Cloudy eye is common in "less than" pristine water but clears quickly with regular partial WCs and "cleansing" of the tank...IE: a WC is in order and couldn't hurt...(aged,aerated,temp/salinity adjusted,pH match)
"IF" you need to treat your fish you should do it in a QT or hospital tank, NOT the main tank...
Perhaps you should post this down in the Disease and Treatment forum for a better diagnosis and "proper" treatment advise...:yes: