Well I didn't mean necessarily "Change" eye color.... I know that nothing can say make my eyes green or blue or whatever color.... If they are not..... I just heard that sometimes eye color can be clouded from mucus build up in the bowel....(Strangge...but hey I'm not an internal medical specialist..) over the years I've noticed a chage in the clarity of my own eyes.... Maybe this is just a regular change but I'm not sure.... I'm in good health for the most part.... So it's not a medical condition and I was wondering if anyone knew what these herbs were and if they exist.... Or not.... Or if there is any truth in this because I've heard of the existence of such herbs from more than one source.... Yet no one has really been too clear on what herbs these may be or there purpose... However "bowel cleansing... Was the most often referenced..... I heard that some memory enhancing herbs may do the sam ebut that was only once..... Maybe just coincidence..... . Thanks anyway for an answer....