Distilled Water for Tear Stains
I have a six year old female named Fancy. I asked several vets what could be done about her eye staining to no avail. I was reading a magazine on Maltese and found an article that suggested distilled water. Now don't expect this to miraculously work overnight it takes at least a couple of months.
It seems that this article said it was the excess minerals coming out of the dogs' system, something along the same lines of us humans pooping out vitamins we don't need. A gallon of distilled water is only about a dollar and it takes my baby a long time to drink a gallon of water, even with giving her fresh water daily.