Color blindness all variations in human color vision involve the red and green receptors in male eyes. It is very rare for males or females to be "blind" to the blue end of the spectrum. The first scientific paper on the subject of color blindness, "Extraordinary facts relating to the vision of colours", was published by the English chemist John Dalton in 1798 after the realization of his own color blindness. Because of Dalton's work, the general condition has been called "daltonism", although in English this term is now used only for deuteranopia. Color codes present particular problems for those with color
European Society for the Study of English Anglicists in Higher Education (Belgium), Bulgarian Society of British Studies (Bulgaria), Hrvatsko drustvo anglistickih studija (Croatia), Cypriot Society for the Study of English (Cyprus), Czech Association for the Study of English (Czech Republic), Nordic Association for English Studies (Denmark and Norway), Finnish Society for the Study of English (Finland), Société des Anglicistes de l'Enseignement Supérieur (France), Deutscher Anglistenverband (Germany), Hellenic Association for the Study of English (Greece), Hungarian Society for the Study of English (Hungary), NAES ([Republic of Ireland]), Associazione Italiana di Anglistica (Italy), Lithuanian Association of University Teachers of English (Lithuania), Zdruzenie na Anglisti na Makedonija (Macedonia), Association for