Colour Blindness

Sam Vimes · 12-04-2010 05:29PM

No

OutlawPete wrote: »

I don't know about Sam, Nothingman and others but I have no problem with differentiating between those shades.

If someone puts a handful of grass against the side of a Fire Engine, I can tell the difference.

Then I could go playing snooker and can't find the green amongst the reds.

It's all about the shades for me at least.

Same here. Grass and a fire engine look totally different but in a casino I've had to ask for different chips at the roulette table because I couldn't tell the difference between mine and another guy's. Only once though so it's usually fine. Same with snooker, usually it's fine but a few times in bad light or if a ball is faded I can't tell the green from the brown or reds

TheKells · 12-04-2010 05:43PM

Naos wrote: »

That last test, the 2 or 5 - I couldn't see either! :eek:

I saw 8...I think that means I'm awesome :cool:

Ostrom · 12-04-2010 05:46PM

No

OutlawPete wrote: »

The Dyslexia threads lately have thrown up a few users that I was surprised to find to be Dyslexic and got me wondering how many people are colour blind as I rarely meet people who are.

I am Red Green Colourblind.

It has restricted me bigtime in life as so many things I was interested in studying, I had to pass on. Photography, Guards, Graphic Design, Pilot (don't laugh, I could have been one ).

When I was growing up, Snooker was always the thing that I was slagged mostly about.

Green, Reds and Brown always looked the same.

If they were extreme shades I could make them out, like Brown Sauce, Red Fire Engine and Green Grass are easy but once the shades change from the obvious, the colours just merge and you can't see any difference.

Blues and Pink can also look the exact same.

So, anyone else Colour Blind?

Here's a test if you've had doubts.

I can vouch for this test 100%, as I can see only three of the numbers

https://www.youtube.com/watch?v=CWyrp3hu4KE

Me too! Green-Brown, Red-Green and Blue-Purple (less so)

They caught it in first class when I couldn't stop drawing brown grass in my pictures. I haven't been too limted by it though, the yellow stripe in the earth wire helps a lot.

Snooker is still worst, I have to have most of the balls pointed out before I take a shot. Trivial pursuit also - matching the answer categories. When I produce charts in stats programmes I have to make sure there aren't any overlapping colours, and it makes it hard to read things like trend diagrams with multiple colour coded lines.

aDeener · 12-04-2010 05:49PM

Cuddlesworth wrote: »

Because I can differentiate it between red and brown.

I can't distinguish between pink and brown, hence why the ex dumped me..........

OutlawPete · 12-04-2010 05:51PM

No

efla wrote: »

They caught it in first class when I couldn't stop drawing brown grass in my pictures.

Ah, so did I

I once drew the Incredible Hulk brown

I also see no difference between Amber and Red on a traffic lights.

It doesn't matter unless there is no streetlights and then I just have to treat Amber as Red.

I have often wondered why they didn't choose Blue instead of Amber, I could tell Blue and Red apart far easier.

Ostrom · 12-04-2010 05:55PM

No

OutlawPete wrote: »

Ah, so did I

I once drew the Incredible Hulk brown

I also see no difference between Amber and Red on a traffic lights.

It doesn't matter unless there is no streetlights and then I just have to treat Amber as Red.

I have often wondered why they didn't choose Blue instead of Amber, I could tell Blue and Red apart far easier.

Same here (lights), I have to do them by order. Filter lights were confusing at first because I couldn't work out if the top light of the two was stop or go

Can we get private pilots licenses?

OutlawPete · 12-04-2010 05:58PM

No

efla wrote: »

Can we get private pilots licenses?

Not sure, I hope someday that I'm upset that I can't get one though, it'll mean good things have occurred, a lotto win maybe

Voodu Child · 12-04-2010 06:26PM

Can one of the colour blind people tell me what this says? Apparently its a reverse test that only colour blind people can get.

http://i41.tinypic.com/282izc4.jpg

OutlawPete · 12-04-2010 06:28PM

No

Voodu Child wrote: »

Can one of the colour blind people tell me what this says? Apparently its a reverse test that only colour blind people can get.

http://i41.tinypic.com/282izc4.jpg

I can just barely make out a 'NO'?

Maybe, it also could be 'H6'.

It's VERY hard for me to see at least.

Gillington · 12-04-2010 06:37PM

Always felt sorry for the brother in the film

"Little Miss Sunshine"

when he finds out he's colour blind!

nucking futs · 12-04-2010 06:41PM

This thread reminded me of a funny story about one of my class-mates

In 5th Class we had the usual eye exam. Anyway to test for colour-blindness there were half-a-dozen cards with a circle drawn on with an opening at either end. The idea was to follow the path out with your finger, obviously the idea being that if you're colour-blind you won't be able to distinguish the line from the background. A lad in my class didn't understand what he had to do so he just followed a straight path from one side to another so the examiner thought he'd failed each one

The Recliner · 12-04-2010 07:37PM

I think this t-shirt sums things up perfectly

Prof.Badass · 12-04-2010 07:39PM

Yeah, it's all down to the colour-detecting cells in our eyes. In humans there's 3 different types (called cone cells) which pick out red, green and blue...then our brains take data from all 3 to form the range of colours we see. With colourblindness one or more of these cones aren't working properly, giving the person a smaller range of colours.

What's interesting is that most birds have 4 colour cones (known as tetrachromacy) which makes them able to see a whole range of different colours, even extending into the uv range.

Then you have some animals which have 5 :eek:, such as pidgeons and butterflies. So i guess we'd all seem colourblind to them.
I realise this post probably seems a bit weird, but i wanted to share about tetra and pentachromacity as i think it's quite amazing to think how other animals experience the world.

NothingMan · 12-04-2010 07:45PM

No

The Recliner wrote: »

I think this t-shirt sums things up perfectly

That T-Shirt sucks. I bought it from T-SHirt hell and I couldn't read it on the site but what was delivered was of such low quality that a fully blind person could read it nevermind colour blind. I complained but they just said I must not be colour blind. Bastards!

Manic Moran · 12-04-2010 07:59PM

No

I've got a bizarre form of colour-blindness which officially comes out as 'red/green' in the dot tests, but I find my real problem is with dark hues of blue and red. Didn't know a thing about it until I took the medical for the FCA and was told I couldn't drive for the Army. (But it seems nobody bothered to check, and I got my AF154 anyway). I can pass the D-15 graduated colour vision test, it's that damned 'spot the number in the dots' test that throws me.

hasn't affected me much except the fact that the only job I wanted was to be a soldier so I couldn't pursue that career

That's one of those bizarre things where people don't learn from history. In WWII, colour-blind persons, particularly monochromatic (i.e. no colour vision at all, they can only see in greyscale) were specifically sought for recon and photo-imagaery analysis jobs. Fully colour-capable persons are far too used to cheating and just looking for colour differences, whereas monochromatic persons instead look for contrasts and shapes: Much more useful when you're trying to spot green camouflaged vehicles under green netting on a green background.

My arguments did not hold up, unfortunately, when I went to the US Army recruiter, and was told I couldn't be a tanker or cav scout, as full colour vision must be a requirement. (I have heard instances of some colour-blind tankers not being able to see the red laser-projected reticle in the tank). (They also said I was too tall to be a tanker. Harpumh). But where there's a will, there's a way. To be an officer in the US Army, you just need to be capable of distinguishing the seven colours on a military map. If you can do that, then once you're in the system, they don't check.

I was also able to obtain a First Class Airman's Medical Certificate (Airline pilot standard), the requirement is not 'fully colour capable' but 'must be able to perceive the colours required', which generally means red, blue, green, white and I think yellow.

NTM

LenaClaire · 12-04-2010 08:18PM

My dad and one of his brothers are color blind. One of their friends gave them red golf balls as a joke and they were always losing them.

They would have to get the non-color blind brother to find them all.

Adyx · 12-04-2010 08:25PM

Voodu Child wrote: »

Can one of the colour blind people tell me what this says? Apparently its a reverse test that only colour blind people can get.

http://i41.tinypic.com/282izc4.jpg

I can make out a no in it too. I'm not colour-blind though apart from a "slightly deficient green" which I assume means I can't tell the difference between certain shades of green.

Ann22 · 12-04-2010 08:37PM

Thanks for that Pete, that was a cool wee test:).

Ann22 · 12-04-2010 08:48PM

stovelid wrote: »

I know this sounds dumb, but if to fail a particular test, does it mean you just cannot see the number at all? Apart from the last one, obviously.

What if you can almost see, for example, confusing 8 for 3 or whatever?

Does that just mean that the blindness is on a spectrum, for example, nearly OK right up to fully blind, if you get me?

Sorry if this sounds thick.

My hubbie, 2 sons and I just did the test. We all thought the 15 was 25 though when it goes misty the 1 is more clearly defined. We all also thought the 3 was an 8-though we could make out the 8 when we saw the answer. The final picture didn't look like a 2 or a 5 to any of us, if I did have to guess it was more like an 8. Are we all colour blind?:D

Danbo! · 12-04-2010 09:09PM

No

Yep, im colourblind too. I found out in college when a friend showed me that **** the colorblind t-shirt and I couldnt see anything funny about it. It must be mild enough for me though, I dont have trouble with traffic lights, but sometimes when I see red and green printed beside eachother, they kind of flicker. There are some shades of greens/reds/yellows that I have trouble with.

I remember telling the aul wan and she thought I was joking, and asked what colour is my jumper?? I looked at it and didnt have a ****ing clue how to describe it. After a pause from me, she said "its taupe!", resulting in most of my family laughing at her.

OutlawPete wrote: »

It has restricted me bigtime in life as so many things I was interested in studying, I had to pass on. Photography, Guards, Graphic Design, Pilot (don't laugh, I could have been one )

Dunno about that, pilot maybe not, but gardai can be colourblind but cannot drive, although I think they have a second level of testing beyond those disc tests. Im an architect and have never had a problem with it in work, ie someone finding out/commenting on anything, and I mainly work in the visualisation side of things. Also into photography as a hobby.

You could be in the army pete, apparently (probably a myth) camouflage isnt as effective to colour blind people. Dunno how though.

Mars Bar · 12-04-2010 09:11PM

OutlawPete wrote: »

https://www.youtube.com/watch?v=CWyrp3hu4KE

I love the way the comment under the first circle and number is "if you don't see 25 you are blind". Not just colour - blind, but blind!

As a Man Utd and Ireland supporter, I'm glad I'm not red/green colour blind!

Precious flower · 12-04-2010 09:15PM

Kiera wrote: »

There are different forms of colour blindness? I know one of the girls in here in work cant tell the difference between navy and black but I didn’t know there were "red/green" types. That’s just mad. Ted!

Women can't get colour blindness that genetic disorder is only passed on to men.

Manic Moran · 12-04-2010 09:26PM

No

You could be in the army pete, apparently (probably a myth) camouflage isnt as effective to colour blind people. Dunno how though.

See post 46 above.

NTM

tomhappens · 12-04-2010 09:42PM

No

Voodu Child wrote: »

Can one of the colour blind people tell me what this says? Apparently its a reverse test that only colour blind people can get.

http://i41.tinypic.com/282izc4.jpg

I can see "G Sarcone - www.archimedes-lab.org" Do I win?

Seriously though I can't see anything in that pic. I have the Green brown one too. In the following example I can see 25 as clear as day in the top right on and then nothing in all the rest.. http://www.toledo-bend.com/colorblind/Ishihara.asp

My missus think it is great craic to randomly ask me about colours to test me.

It only really effects my every day life in one area. An area I was considering a few weeks ago to write to the EU about. Recycling bottles

Green...Brown... NOT A CLUE DO I HAVE. My Missus has to put them in boxes with a G or B on them

So I was going to suggest to the EU that a bottle should have a 1 Indented on it for Green and a 2 for brown. 3 For clear if needed. Why Digits? Well that would be an internationally understood medium...in Europe! Obviously the the Recycling bins could have the respective number on them.

I had considered using brail too but had visions on some blind person standing in my local recycling area firing bottles out onto the road:D

Sam Vimes · 12-04-2010 09:56PM

No

Stee wrote: »

sometimes when I see red and green printed beside eachother, they kind of flicker.

Me too. I actually have no idea if it's a colour blindness thing. Does that happen to any of the normals here?

profitius · 12-04-2010 10:22PM

No

Stee wrote: »

Yep, im colourblind too. I found out in college when a friend showed me that **** the colorblind t-shirt and I couldnt see anything funny about it. It must be mild enough for me though, I dont have trouble with traffic lights, but sometimes when I see red and green printed beside eachother, they kind of flicker. There are some shades of greens/reds/yellows that I have trouble with.

I've the same problem. When I was younger I always thought I was very slow at learning colours because my friends would be talking about colours of cars etc and I wouldn't have a clue. I officially found out when they done a test in school.

Stee wrote:

You could be in the army pete, apparently (probably a myth) camouflage isnt as effective to colour blind people. Dunno how though.

My father who is also colour blind was travelling with people one day and he said look at the rabbits at the side of the road. Nobody could see them because they were camouflaged in the grass so maybe theres something to that.

bnt · 13-04-2010 12:05AM

No

I have quite severe colour blindness, according to formal medical examination, but I would never have known without the tests. It's dependent on ambient light levels, so I can mix up red and green wires in dim light, but I have no difficulty with traffic lights or anything well-lit. I think I have well-above-average night vision, even though I'm told that's a myth.

According to some old research I also look kinda funny. :cool:

PS: I "do photography" quite happily: digital photography, and I use software's automatic colour correction at times. Some of my photos look better in monochrome, which might mean something.

LenaClaire · 13-04-2010 12:19AM

Precious flower wrote:

Women can't get colour blindness that genetic disorder is only passed on to men.

Actually women can be color blind it is just more rare. The gene for color blindness is a recessive gene on the X chromosome.

Since women have 2 X chromosomes they would have to have the gene on both X chromosomes to exhibit the trait where as a man with only one X just needs to have the gene once.

Capt'n Midnight · 13-04-2010 12:22AM

rainbowdrop wrote: »

Is it true that you can't be an electrician if your colour blind?

That's why the earth wire is striped

maybe one of the other two wires is darker than the other ?

Posy · 13-04-2010 12:34AM

TheKells wrote: »

I saw 8...I think that means I'm awesome :cool:

I saw 8 in that last one too. (Hooray)

Colour Blindness

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