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
Sydney Young (chemist) and the other, Charles Edgar, became headmaster of Rossall School. Sydney Young (chemist) Sydney Young FRS (29 December 1857 – 9 April 1937) was an English chemist. He was born in Farnworth, near Widnes, Lancashire, the son of merchant Edward Young, JP of Liverpool. He was educated at a private school in Southport and the Liverpool Royal Institution school. In 1877, after two years working with his father, he entered Owens College, Manchester, to study chemistry. He was awarded B.Sc. in 1880 and the degree of D.Sc. three years later, while working with William Ramsay at University College London. There