I just found out a method of determining ur health status by inspecting ur iris. The method is called iridology, I wish to know more of it. I tried to search the net and found some negative value of its, which implied that it may not reliable. What do u think? Other than that, if our eyes' iris will change when there is some injuries, organ failing, or tissue failure, then wont it be that the Security system using iris identification be improper?