> Some references about color deficiency, color blindness, etc. Those are the same thing. Dichromatism and daltonism are other terms. > Oliver Sacks, _Island of the Colour Blind_. Sacks, a neurophysiologist > and a superb writer, describes a trip to a Micronesian island with a > very large population of achromatopes. Or achromats. Since, according to Joel Pokorny, "the prevalence of achromatopsia is reported to be 0.003% (Waardenburg, P. J. Achromatopsia congenita. In Genetics and Ophthalmology. P. J. Waardenburg, A. Franceschetti and D. Klein. Assen, Royal van Gorcum: 1695-1718, 1963)," WCAG 2.0 doesn't need guidelines for this group. Still, the spectre of achromatopsia errantly haunts WCAG 1.0 and influences nonexperts in the development of 2.0. -- Joe Clark | joeclark@joeclark.org Author, _Building Accessible Websites_ <http://joeclark.org/access/> | <http://joeclark.org/book/>Received on Friday, 12 September 2003 14:55:33 GMT
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