Distilled water did nothing for Snickers

Distilled water plus Apple Cider Vineagar did nothing for Snickers

Complete Raw Diet did help a BIT but Snick likes to snack on his kibble and eats Evo biscuits as well as fruit for snacks.  I cannot take away his snacks as he is under weight and I want him to eat.  His snacks might be contributing to his eye gunk, I'll never know, but I don't have the heart to only give him 2 meals of raw a day and nothing else to find out.   
Snick & Viv