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Genetic Disorder: Color Blindness
Transcript of Genetic Disorder: Color Blindness
5th Period Meaning Color blindness is when a person can not see red, green, blue, or a mixture of all of those colors. It is really rare that a person sees no color at all. Sometimes, color blindness is called a color vision problem. Cause Color blindness is usually caused by inheritance in a recessive trait, aging, eye problems like glaucoma, an injury to the eye, and sometimes even side effects of medicines. Symptoms Specifics Many people think that "color blind" is being able to see everything in black and white. This is a common misconception and extremely not true. There are genes that control "pigments" in our eyes. These pigments are light sensitive little things in our eyes that pick up the wavelengths and convert them into colors. If one of these genes that were controlling them messed up creating different color schemes and not being able to pick up the colors, color blindness happens. There are in fact many different types of color blindness. The chromosomes that are involved in changing these color schemes are the "X" chromosome for red-green color blindness and faint blue color blindness. The ones that are affected for blue-yellow is chromosome 7. The ones involved for the "Rod" blindness are chromosome 2 and 8. Types As you may already know, there are more then one type of color blindness including protanomaly and protanopia. Protanomaly Protanomaly is also reffered to as "red-weakness". Any red color seen by the viewer is less red to the veiewer then it actually is in terms of brightness and depth. Red, orange, and yellow are all shifted in a hue. This is the type of color blindness the affects 1/every 100 men. Protanopia This is a similiar form of color blindness in whic red, yellow, and orange are all dimmed and not as normal. For them it is easy to distinguish red from yellow if they try. Violet, lavender, and purple are pretty much the same to the viewer because of their reddish hues. This affects 1/every 100 males. Not seeing bright colors
Inability to tell the difference between colors
Rapid side-to-side eye movements
Questions Q: What kind of medical assistance will the affected child need? Will further assistance be needed, as
the child grows older? What is the long-term outlook for the child? A: Currently, there is no treatment but there are special contact lenses the help woth some of the fainter colors. Q: Are there any treatments or cures? A: See Question 1. Q: Could this disorder have been prevented? A: Yes, in some ways but no in most. You can not do certain medicines that hive the side affects of color blindness and have early diagnosis but if it is in your genes there is no prevention. Q: Can this individual have children in the future? Will those children be affected? A: Yes and yes. There is a slight chance that if you were diagnosed with color blindness and you have a child that that child might have color blindness as well. The Cure Yes, scientists have very recently found a cure for monkeys that had color blindness but it has not been approved for human trials yet stay tuned with http://www.color-blindness.com for more information on the cure. Sources •http://www.webmd.com -WebMD•http://www.colblindor.com -Colblindor•http://colorvisiontesting.com -Color vision Testing•http://health.nytimes.com -NY Times Health•http://www.ehow.com -eHow•http://www.colour-blindness.com -color blindness.com The End