" Color blindness is
an inaccurate term for a lack of perceptual sensitivity to certain colors. not being able to see color is unknow. There are
three types of color receptors in our eyes, red, green and blue. We also have black and white receptors. They are more sensitive
than the color receptors, that is why we have poor color perception in the dark.
Color blindness comes as a result of a lack of one or more of the types of color receptors. Most
color perception defects are for red or green or both. About 10% of males have a color perception defect, but this is rare
in females. Red-green color blindness is a result of a lack of red receptors.
Another form of color blindness -- yellow-blue is the second most common form, but it's extremely rare. It is also
possible to have the color receptors missing entirely, which would result in black and white vision. "
Total color blindness- Achromatopsia or total color blindness is the inability to
see color.
Red and green color blindness- this can effect men more than women. this is the inability
to see Reds and Greens.
Blue and yellow Color blindness- the inability to see blues and yellows.
for more information go to:
| Prevalence of color blindness |
|
Men |
Women |
Total |
References |
| Overall |
- |
- |
- |
|
| Overall (United States) |
- |
- |
1.30% |
[1] |
| Red-green (Overall) |
7 to 10% |
- |
- |
[2][3] |
| Red-green (Caucasians) |
8% |
- |
- |
[4] |
| Red-green (Asians) |
5% |
- |
- |
[5] |
| Red-green (Africans) |
4% |
- |
- |
[6] |
| Monochromacy |
- |
- |
- |
|
| Rod monochromacy (no cones) |
0.00001% |
0.00001% |
- |
[7] |
| Dichromacy |
2.4% |
0.03% |
- |
[8] |
| Protanopia (L-cone absent) |
1% to 1.3% |
0.02% |
- |
[9][10] |
| Deuteranopia (M-cone absent) |
1% to 1.2% |
0.01% |
- |
[11][12] |
| Tritanopia (S-cone absent) |
0.001% |
0.03% |
- |
[13] |
| Anomalous Trichromacy |
6.3% |
0.37% |
- |
[14] |
| Protanomaly (L-cone defect) |
1.3% |
0.02% |
- |
[15] |
| Deuteranomaly (M-cone defect) |
5.0% |
0.35% |
- |
[16] |
| Tritanomaly (S-cone defect) |
0.0001% |
0.0001% |
- |
[17] |
People who are color blind dont relize that they are sometimes because they learn a diffrent
name to the color they see.
There is
no treatment for color blindness
Everyday
proublems for color people
- Weather forecasts - especially the Weather Channel
- Bi-color and tri-color LEDs (Light Emitting Diode
- Traffic lights
- Color observation by others
- Purchasing clothing
- Kids and crayons
- Test strips for hard water, pH, swimming pools,
etc
- Cooking and foods
- learning the
right names with the right colors
http://www.toledo-bend.com/colorblind/aboutCB.html
