Clieon
Κλέων
(Κλέων), an oculist who must have lived some time before the beginning of the Christian era, as he is mentioned by Celsus. (De Medic. 6.6. §§ 5, 8, 11, pp. 119-121.) Some of his prescriptions are also quoted by Galen (De Compos. Medicam. sec. Locos, 3.1, vol. xii. p. 636), Aetius (Lib. Medic. 2.2. 93, 2.3. 15, 18, 27, 107, pp. 294, 306, 309, 353), and Paulus Aegineta. (De Re Med. 7.16, p. 672.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.