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Color blindness
A community portal about Color blindness with blogs, videos, and photos. According to Wikipedia.org: Color blindness, or color vision deficiency, in humans is the inability to perceive differences between some or all colors that other...
A community portal about Color blindness with blogs, videos, and photos. According to Wikipedia.org: Color blindness, or color vision deficiency, in humans is the inability to perceive differences between some or all colors that other people can distinguish. It is most often of genetic nature, but may also occur because of eye, nerve, or brain damage, or due to exposure to certain chemicals. The English chemist John Dalton in 1798 published the first scientific paper on the subject, "Extraordinary facts relating to the vision of colours", after the realization of his own color blindness; because of Dalton's work, the condition is sometimes called Daltonism, although this term is now used for a type of color blindness called deuteranopia.
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==Causes==
==Causes==
Cleanup-section|date=September 2009
Cleanup-section|date=September 2009
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Any recessive genetic characteristic that persists at a level as high as 5% is generally...
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"Vision begins with the absorption of light by visual pigments in these cells. In humans, cone photoreceptors carry one of three different pigments (opsins). These pigments are maximally sensitive at different wavelengths (long, middle, and short wavelengths, or red, green, and blue, respectively), and persons who have these three pigments are called trichromats. Combined, the absorption spectra of the three pigments cover the visible spectrum...
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Have you ever wondered what people who are colour-blind see? Do you know someone who is colour-blind? Test yourself and also become more aware of what people affected by colour-blindness would have to cope with.
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Difficulty in understand different colors and mixing each color with the other one is known as color blindness, read further about the actual meaning of color blindness
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