iridology was first practiced in the 19th century by a Hungarian doctor named Ignatz Von Peczely. when he was a child, he nursed an owl with a broken leg and noticed in its iris a black stripe that slowly turned white and then became a tiny black spot as its leg healed.years later, as a doctor, he noticed a similar marking in the eye of a man with a broken leg. over the years Von Peczely found many cases in which people suffering from similar illnesses had similar markings in their irises.