[Professor Jules François Memorial Lecture. Code of ethics and its practice in ophthalmology]

Several Articles are shown from the code of ophthalmological ethics written by late Professor Jules François. Some examples found in the history of ophthalmological practice that complied with these articles are demonstrated. In the modern society with aging population, ophthalmic surgery must be done with great care; long-term prognosis should always be taken into consideration for the patients to be able to maintain high quality of life throughout their life-span. To achieve this, meticulous and continuous care of patients by means of best possible noninvasive techniques must be exercised and this is a conscience of ophthalmologists.