Opening ceremonies XX International Congress of Ophthalmology. Address of the President of the International Council of Ophthalmology.
D001766:Blindness / Q000517:prevention & control*; D003226:Congresses as Topic; D006801:Humans; D007391:International Cooperation; D007400:Interprofessional Relations; D009885:Ophthalmology; D014141:Trachoma / Q000517:prevention & control