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Color Blindness Information
- 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 1794 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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Color blindness is usually classed as a disability; however, in select situations color blind people have advantages over people with normal color vision. Color blind hunters are better at picking out prey against a confusing background, and the military have found that color blind soldiers can sometimes see through camouflage that fools everyone else. Monochromats may have a minor advantage in dark vision, but only in the first five minutes of dark adaptation.
There is generally no treatment to cure color deficiencies, however, certain types of tinted filters and contact lenses may help an individual to distinguish different colors better. Additionally, software has been developed to assist those with visual color difficulties.
- Click to expand
Health Blogs
Posted in
Ask several experts if carrots are good for your eyesight and you
are likely to receive a variety of responses. The question is often
debated whether carrots, by themselves, are good for your eyes or
whether they be good for your eyes because they contain
beta-carotene, a form of vitamin A? Others will explain that if it
is the beta-carotene, then
... Read More »
Posted in
Age-related macular degeneration (AMD) is the leading cause of
blindness in Americans over the age of 60. Prevention of AMD is key
since the treatments we have don’t really work and part of our
answer may be in vitamin D. High levels of vitamin D in the
bloodstream may help protect against early age-related macular
degeneration (AMD) in women
... Read More »
Posted in
Stroke and heart disease are the big two issues all of us need to
worry about, but, move over breast cancer and menopause, these are
the things men, and the people who love them, need to know about.
• Prostate Cancer: This is the second leading cause of cancer death in men behind only lung cancer. When and how ... Read More »
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