Yes, that's correct. I know the eyebright does have cayenne in it but don't know how much but I know it's less than what's in the actual cayenne/capiscin tincture.
I was up to 3 drops of eyebright per eyewash and was used to it. The cayenne must be much more concentrated because I thought for a moment that I was going to pass out and was dizzy with a throbbing in my head. The eyewash never did this to me.
I bought the eyewash because to help with crawling feelings in my eyes. I looked in the mirror with a flashlight but couldn't see anything.