Northgirl,
this webpage may be of help to you,
nothing about clay,but it does say,
if Drinking water,it should be distilled..

http://www.moondragon.org/health/disorders/cataracts.html

I am about to start using it to treat a cataract. I think distilled water is important as an chemicals in water can irritate the eye.

I do not think the eye should be washed with the water, just a drop or 2.

I am currently about to have one eye treated by surgery and part of pre-op consist of various drops but never more than 1 or 2 drops.

My plan is to put about 2 tablespoons of pascalite in a melita coffee filter and add 3 tablespoons of distilled water and catch it in a small jar. Two tablespoons of water will produce quite a few drops.

It is said that the indians did it by making a paste and putting on the eye lashes at bed time.

I obviously do not yet know the right answer but we should keep in touch

Regards

Bill

Before I heard of pascalite I read about the NAC drops. You probably have heard about them. They were developed by a Russian doctor. He says that two drops four times a day for four months will cure a small cataract. I got the drops on amazon.

brite eyes iii nac

I have been using them for about a week. From what the Russian doctor says, my guess is that it takes a long time to cure a cataract with drops