Doctor insights on:
Genetic Cause Of Color Blindness
I have to do a genetic disorder report for class and was debating between color blindness and hemophilia. What are your opinions?
Both interesting: These are both fascinating diseases and the subject of much inquiry. Look on wikipedia and you will find much to talk about. The issues are quite different but the underpinning for each is genetic. The hemophilia has had impacts on history such as the family of queen victoria. Color deficiency has caused some famous accidents. Have fun. ...Read more
From a medical standpoint, "genetic" refers to the potential heritability of various medical conditions. While some conditions are inevitable (at some point in one's life) as a consequence of simple genetic heritability (eg huntington's disease), a large number of medical conditions (including all behaviorial health disorders) are the expressed final pathway of a ...Read more
Why am i color blind? What is the cause of color blindness? No one in my family has the gene that causes color blindness.
Blame your Mom: If you have red-green color deficiency, then you carry a defective x-chromosome which you got from your mom (i assume you are a male). Your mom was a carrier so she was color normal and you had a 50% chance of getting the abnormal x from her. So in fact someone in your family, mom, had the gene. ...Read moreSee 1 more doctor answer
I took ishihara plate test on internet and it shows that I have red color blind (protanopia). What can cause it, and what can be done about it?
Genetics: Color vision is controlled by a gene on the x-chromosome. Females xx and males xy, making males more likely to be color blind. Of the different types, red/green is the most common, with red being a sub-type of this. You should see an ophthalmologist for an evaluation. If you are just now discovering this, it seems like you are pretty well adapted to your situation. ...Read more
Several: Color deficiency can occur with advanced diseases of the retina such as diabetes retinopathy and retinitis pigmentosa. Color vision changes can occur because of changes in the lens which alter color sensitivity. A few rare strokes in the brain can wipe out the color sensitivity. Most color deficiency is due to genetic changes in the chromosomes and is inherited. ...Read moreSee 1 more doctor answer
None: Colorblindedness is inherited. It cannot be caused by an accident. ...Read more
There is none: You can have colour blindness when you see red as black, but not black as red. ...Read more
Too much sun?: The eyes have visual pigment that responds to color. Some are born with defective pigment and can not detect red or green. More common the pigment is bleached out due to too much exposure to light - especially sunlight. If you have been exercising too much in the bright sun you may become dehydrated and also find it difficult to see colors. Cooling off, liquids, rest, and dim light are needed. ...Read more
Vision impairment and blindness are conditions in which a person cannot see well or see at all, even with glasses or contact lenses. If a person's best vision (with correction) out of either eye is only 20/70 - 20/200, he is impaired. If he can see no better than 20/200 or his visual field is no more than 20 degrees (severe "tunnel" vision), ...Read more
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