Color Blindness??!
Question: I'm doing a report for school and I needed to know a few things:
-Is color blindess associated with a particular ethnic group or geographical location?
-Is this disorder inherited?
-Do symtoms appear to birth or later on in life
-How was this disorder named?
-When was this first discovered or identified?
Anything you give would be greatly appreciated!
Answers: I'm doing a report for school and I needed to know a few things:
-Is color blindess associated with a particular ethnic group or geographical location?
-Is this disorder inherited?
-Do symtoms appear to birth or later on in life
-How was this disorder named?
-When was this first discovered or identified?
Anything you give would be greatly appreciated!
#1: Yes. It's more commonly found in white males of European descent.
#2: Yes. The gene for color-blindness is carried in the X chromosome, the female chromosome and is passed on by the mother. Although females may carry the gene, it's usually males who are affected.
#3: For the first 3 to 4 months of life, color vision in the neonate has yet to develop fully. Infants see in shades of black and white until then. Therefore, "symptoms" wouldn't appear until much later. The condition is usually accidentally discovered in early childhood by family members or when children are given the Ishihara color test as a part of vision screening at a pediatrician's or optometrist's office.
#4: I think that's obvious.
#5: There's no way to know who first identified color-blindness but the first major study about it was published in 1794 by John Dalton, who was, himself, color-blind.
Also called Daltonism after John Dalton, color-blindness doesn't mean that no color can be detected and everything is seen in black, white and shades of grey. Although this condition also exists, it's extremely rare. What it means is that certain colors cannot be distinguished. Red/green color-blindness is the most common and about 99% of color-blindness is the red/green type. The other, blue/yellow color-blindness is rare. There is a great deal of information about vision conditions online. Take a look. It may help.
I bet that if your do a search key word color blindness you could find out a lot more than i can tell you about it
ethnic group or geo location. no.
disorder. can be inherited or aquired
thats all i know. hope it helps in some ways though.
and what the lady said. looking it up yourself can sometimes answer your own questions before asking the questions.
but you already did and i partially answered it