[The Origin of the Disorder Named "Ryoku-naisho (Glaucoma)"].
It is said that the description of an ocular disorder related to the color of the sea in the Hippocratic Corpus is the oldest medical reference to glaucoma. In the early Edo period in Japan, the Books of Secrets of the Majima school, describe a disorder called aosokohi. This nomenclature is believed to be based upon the Five Elements' Theory (Wu-Xing Thought)in ancient China, which assigned five colors for intraocular disorders ("naisho/sokohi" in Japanese), blue ("ao" in Japanese), red, yellow, white and black. In Japanese literature, in late Edo period, "ryokunaisho (glaucoma)" appeared after the publication of Dutch-Japanese translation by Dutch scholars. The Japanese name is thought to derive trom "Glaukos" which means green in ancient Greek. Since the Meiji period, "ryoku-naisho (glaucoma)" has been used inmost textbooks including those by foreign teachers and the works of Jujiro Komoto, the first Professor at the Department of Ophthalmology of (Tokyo)Imperial University.
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D005901:Glaucoma / Q000266:history*; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049691:History, Medieval; D006801:Humans; D007564:Japan; D009626:Terminology as Topic