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.
For more information about the topic Color blindness, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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