Color Blindness


Description:
The person has trouble seeing red, green, blue, or a mix of those colors. Color Blindness occurs when you don’t have certain cone cells or they don’t look right. Color blindness occurs when there is a problem with the color sensing materials in certain nerve cells of the eye. If you are just missing one pigment, you might have trouble telling the difference between red and green.

Inheritance:Males are more likely to be color blind. The gene for the trait is located on the X chromosome. Since females have two X chromosomes while males have an X chromosome and a Y chromosome, this color blindness is much more common in males. Women must have defects in both chromosomes before they exhibit the color blindness. Because the gene is recessive, a woman who is not colorblind, but has a color blind defect in one X chromosome is a carrier of this color blindness. Many females are carriers of the genes, but don’t express the trait, but pass it on their sons who may exhibit the trait or disorder.
Symptoms:


You may see many colors, but you may not know that you will see colors differently from others.

In rare cases, you may see only black, white, and gray.

You may only be able to see a few shades of color, while most people can see thousands of colors.

Daily Life:
A daily life for a person living with color blindness is that sometimes you don’t see colors they only see black, white, and gray. They don’t see the same colors that a normal person with normal vision would see. Teachers for the child may notice it during school. Cooking can be frustrating for a person living with color blindness. Choosing colors for children could be hard in school. When older most people living with color blindness can’t tell the difference between the red, green, or yellow light. When students are doing a science project they try to attempt to identify a chemical reaction and the colors come out different then normal.

Diagnosis:
color blindness could be diagnosed by tests. In one type of test, you look at the sets of colored dots and try to find a pattern in them, such as a letter or number. The patterns you see help you doctor determine which colors you have trouble with. In another type of test, you arrange colored chips in order according to how similar the colors are. People with color vision problems cannot arrange colored chips correctly. Color vision is most commonly detected with special colored charts called Ishiara test plates. Once the color detect is identified, more detailed color vision tests may be preformed. Teacher or parent notices color disorder.

Treatment:
Color blindness cannot be treated or corrected. Some colored vision problems can be treated, depending on the cause. If a cataract is causing a problem with color vision, surgery to remove the cataract may restore normal color vision for example: wearing colored contact lenses or eyeglasses that block glare. If you’re having trouble seeing colors because of the cataracts surgery treats the cataracts. Gene therapy may help to try to repair the X chromosome.

Research:
Gene therapy may cure color blindness. In general, there is no way to prevent color blindness. Regular eye exams and prompt treatment of eye disorders may help prevent some cases of color blindness. Schoolwork and may even disqualify people from a job that has color vision requirement.


Additional Facts:
Color blindness is not contagious. Children of a person with color blindness are more likely to develop the condition. Color blindness could also be caused by injury or exposure to chemicals. 1/12 men and 1/200 women are affected with color blindness. It affects males more than females. Scientists are trying to cure color blindness with gene therapy, the second successful application of gene therapy treatment. It affects 10 percent of men and 5 percent of women in the United States. In a classroom of 20 students it’s likely that at least one will have a problem with color. If you have color blindness you can’t work with are, fashion, sometimes army, and can’t be a pilot. The three main types of color blindness are: Proton, Deuton, and Tritan.

Punnett Square:
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Pedigree Chart:
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Resources:
Color Blindness – Topic Overview
http://www.webmd.com/eye-health/tc/color-blindness-topic-overview
Color Blindness
http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001997/
Living with Color Blindness
http://www.colour-blindness.com/solutions/living-with-colour-blindness/
Causes and Incidence of Color Blindness
http://www.webexhibits.org/causesofcolor/2C.html
Color Blindness Genetics
http://www.buzzle.com/articles/color-blindness-genetics.html
Color Blindness – Treatment Overview
http://www.webmd.com/eye-health/tc/color-blindness-treatment-overview
Color Blindness
http://www.healthopedia.com/color-blindness/prevention.html

Pictures:
:color-blind-chart.pngcolor_blindness.jpg Colorblindness.jpg