Buhner gives directions for this on page 152 of his book Healing Lyme. Unfortunately I have his second edition, not this one.
Perhaps someone else can look it up for you.
Some one else that has asked.
buhnerhealinglyme.com/herbs/stephania-eyewash/I've never done it but I'm about
ready to try, my eyes just keep getting worse with this double vision, etc. I keep hoping the Kudzu I'm taking will help, but it hasn't yet.