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Sharon Toji, The ADA Sign Lady, sits with Ken to discuss new ADA Sign Standards.

Some of the people who cannot distinguish colors in a normal manner have vision conditions that we consider disabling, such as macular degeneration. Aging also causes loss of ability to see colors normally. However, there are many younger people who have no other type of vision impairments who cannot distinguish many colors. We generally refer to them as being “color blind.” The most common type, “red/green” color blindness, affects about 8 percent of the male population. Color blindness may not seem disabling in the regular sense of the word, but it affects the life of some people in serious ways, since it limits many of the jobs they can perform. It does not matter how talented you may be in science, for instance, but you probably cannot work in many types of laboratories.

Neil Harbisson:  I listen to color

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