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Where or how could I find out how many colorblind births there are per year?

2007-01-14 11:45:47 · 3 answers · asked by Anonymous in Science & Mathematics Biology

3 answers

It isn't usually diagnosed at birth, the only color blind person I know was diagnosed in kindergarten or 1st grade. You need to focus on finding general population statistics instead of diagnosis at birth.

There is a chart showing the prevelance of different degrees of color blindness in the US here: http://en.wikipedia.org/wiki/Color_blindness

2007-01-14 11:50:41 · answer #1 · answered by Bored Enough To Be Here 6 · 0 0

Most types of color blindness are congenital but are only found out about maybe starting at age of 4. If we have a look at the rates, it strongly depends, if there are already some colorblind persons in your family (parents, grandparents, ...).

Have a look at this little table. CB means 'is colorblind' and NCB means 'is not colorblind'. It shows the rate for a newborn girl or boy.

mother || father => boy || girl
NCB || NCB => 0%-50% || 0%
NCB || CB => 0%-50% || 0%-50%
CB || NCB => 100% || 0%
CB || CB => 100% || 100%

The big ranges arise from women which are carriers of color blindness. They themselves are not affected but they carry the color blindness information on them.

If it is not inherited it is at a very low rate. I would say below one out of 100'000.

2007-01-15 05:07:07 · answer #2 · answered by Colblindor 2 · 0 0

color blindness is not known till the mid teen years.Sorry
nowhere is there a rule that you must report color blindness.Perhaps the next inter racial couple you might run into. you may wanna let them know..There is a difference

2007-01-14 19:51:43 · answer #3 · answered by DizzleDot 1 · 0 3

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