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Post by mark123 on Sept 15, 2011 11:48:27 GMT -6
 Symptoms of color blindness can vary. Different people see different shades of colors. You may not be able to see red, green, and blue or variations of those colors. If the color vision problem is not severe, you may not realize that you are seeing something different than a person who has normal color vision. People with less severe color vision problems see variations of colors. They may not be able to tell the difference between red and green but can see blue and yellow. Colorblindness
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Post by mark123 on Sept 15, 2011 11:51:58 GMT -6
 Color blindness is a genetic condition that only rarely occurs in women, but affects 1 out of every 10 men to some degree. When someone is colorblind, it is usually because their eyes do not make all the pigments needed for color vision. Colorblindness
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Post by Ms. Kathy on Oct 29, 2011 21:36:02 GMT -6
Very true! Thanks Mark. Most of the students I've had over the years who have color blindness are boys although the girls with color blindness usually have some other condition that includes color deficiency because of that condition.
My husband is color blind on more than one level. He was not aware of it until he joined the Marines back in the late 60's. He can see blue but if there is something mixed in the blue to make it a different hue of blue he cannot tell--thus he will not see the red in blue-violet and will think it is also. light greens and regular green look tan and brown to him.
On the other level of color blindness, he married me! LOL!
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