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Survey Results

Are you colour blind?   [Edit]

Survey period: 24 Nov 2008 to 1 Dec 2008

Suggested by Joel, who feels there's a connection between IT and colour blindness. Do we buck the average 8% prevalence rate?

OptionVotes% 
Yes14010.11
No1,24589.89



 
GeneralRe: Colour blind or Colour-defficient ? Pin
joep.b25-Nov-08 4:44
Memberjoep.b25-Nov-08 4:44 
GeneralRe: Colour blind or Colour-defficient ? Pin
Thomas Weller25-Nov-08 4:52
MemberThomas Weller25-Nov-08 4:52 
GeneralRe: Colour blind or Colour-defficient ? Pin
joep.b25-Nov-08 5:06
Memberjoep.b25-Nov-08 5:06 
GeneralRe: Colour blind or Colour-defficient ? Pin
DanB198325-Nov-08 5:50
MemberDanB198325-Nov-08 5:50 
GeneralRe: Colour blind or Colour-defficient ? Pin
cjlambre25-Nov-08 8:25
Membercjlambre25-Nov-08 8:25 
GeneralRe: Colour blind or Colour-defficient ? Pin
W Balboos, GHB25-Nov-08 5:02
mveW Balboos, GHB25-Nov-08 5:02 
GeneralRe: Colour blind or Colour-defficient ? Pin
Thomas Weller25-Nov-08 5:13
MemberThomas Weller25-Nov-08 5:13 
GeneralRe: Colour blind or Colour-defficient ? Pin
W Balboos, GHB25-Nov-08 6:06
mveW Balboos, GHB25-Nov-08 6:06 
From the Wikipedia:

Blue-yellow color blindness
Those with tritanopia and tritanomaly have difficulty with discriminating blue and yellow hues.

Color blindness involving the inactivation of the short-wavelength sensitive cone system (whose absorption spectrum peaks in the bluish-violet) is called tritanopia or, loosely, blue-yellow color blindness. The tritanopes neutral point occurs near a yellowish 570 nm; green is perceived at shorter wavelengths and red at longer wavelengths. Mutation of the short-wavelength sensitive cones is called tritanomaly. Tritanopia is equally distributed among males and females. Jeremy H. Nathans (with the Howard Hughes Medical Institute) proved that the gene coding for the blue receptor lies on chromosome 7, which is shared equally by men and women. Therefore it is not sex-linked. This gene does not have any neighbor whose DNA sequence is similar. Blue color blindness is caused by a simple mutation in this gene. (2006, Howard Hughes Medical Institute).


Or, go for the whole story: http://en.wikipedia.org/wiki/Color_blind#Blue-yellow_color_blindness[^]

Some time ago I was looking for a summer job - and tried out in a pigment plant. They give you an amazingly extensive color vision test: matching tiles. Here's the setup:

A stack of 64 mixed tiles, 16 each of r,g,b & y in dull muddy shades
A matching sheet containing 4 rows each of 16 r, g, b, or y tiles that are NOT ordered by shade.
You are to match them to one another.
But
There is not one of each.

So, no guesses, now relative comparisions: they either look different or you can't tell.

My Y/B was found to be exceptional (putting an end to some arguments I had in lab).
My R/G was ca. normal (slightly below, but within 1 or 2 tiles, which is a normal deviation).
To this day, I argue with people about blues, dark blues in particular, as compared to black. I also have to (try to) explain to people that the color temperature of the light illuminating a subject makes a huge difference.

"The difference between genius and stupidity is that genius has its limits." - Albert Einstein

"How do you find out if you're unwanted if everyone you try to ask tells you to stop bothering them and just go away?" - Balboos HaGadol



"It's a sad state of affairs, indeed, when you start reading my tag lines for some sort of enlightenment?" - Balboos HaGadol


GeneralRe: Colour blind or Colour-defficient ? Pin
chaiguy133728-Nov-08 8:05
Memberchaiguy133728-Nov-08 8:05 
GeneralRe: Colour blind or Colour-defficient ? Pin
peterchen24-Nov-08 21:29
Memberpeterchen24-Nov-08 21:29 
GeneralRe: Colour blind or Colour-defficient ? Pin
Brian Sherwood25-Nov-08 2:09
MemberBrian Sherwood25-Nov-08 2:09 
GeneralRe: Colour blind or Colour-defficient ? Pin
Guffa28-Nov-08 6:33
MemberGuffa28-Nov-08 6:33 
GeneralRe: Colour blind or Colour-defficient ? Pin
peterchen28-Nov-08 8:24
Memberpeterchen28-Nov-08 8:24 
GeneralRe: Colour blind or Colour-defficient ? Pin
Stuart Rubin25-Nov-08 4:14
MemberStuart Rubin25-Nov-08 4:14 
GeneralColor-Guarrd (ian). Pin
W Balboos, GHB24-Nov-08 1:29
mveW Balboos, GHB24-Nov-08 1:29 
GeneralRe: Color-Guarrd (ian). Pin
Gary Wheeler24-Nov-08 5:13
MemberGary Wheeler24-Nov-08 5:13 
GeneralCP and Colour Blindness PinPopular
Paul Watson24-Nov-08 0:48
sitebuilderPaul Watson24-Nov-08 0:48 
GeneralRe: CP and Colour Blindness Pin
El Bob-O24-Nov-08 3:54
MemberEl Bob-O24-Nov-08 3:54 
GeneralRe: CP and Colour Blindness Pin
Paul Watson24-Nov-08 4:02
sitebuilderPaul Watson24-Nov-08 4:02 
GeneralRe: CP and Colour Blindness Pin
chaiguy133728-Nov-08 8:17
Memberchaiguy133728-Nov-08 8:17 

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