Ibn al-Thahabi was a physician, famous for his work Kitab Al-Ma'a (The Book of Water), which is the first known alphabetical encyclopedia of medicine. In it he lists the names of diseases, its medicine and a physiological process or a treatment, and adds numerous original ideas about the function of the human organs. Indeed, he explains an original idea of how the vision takes place, similar to Ibn al-Hayham. It also contains a course for the treatment psychological symptoms. The main thesis of his treatment is that the cure must start from controlled food and exercise, and if the symptoms persist then use specific individual medicines.
Abu Mohammed Abdellah Ibn Mohammed Al-Azdi
ابو محمد عبدالله بن محمد الأزدي
Date of death: