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18 answers

New entrants to my place of work tested for colour blindness, dots of similar colour with letters or numbers in the dot's pattern that colour blind people cannot see. But you can buy a machine that tells you what colour something is.

2006-11-13 09:45:07 · answer #1 · answered by Avon 7 · 0 0

You will only know by having a colour blindness test.

They do not test you on what colours you can see but if you can identify an object drawn out of dots on a background of dots..

Everyone knows what every colour is by the name that we have been taught to call a specific colour...someone suffering colour blindness has just been working on a different colour palette to the rest of us.

2006-11-13 17:43:24 · answer #2 · answered by SALLY D 3 · 1 0

people with red/green colour blindness can't see that colour. I deally the term is coulour defficient because they aren't really blind. And it's juust thatthey see that colour as greay or black. there's a test for colour blindness. It's a circle filled with green, yellow and white spots and red spots in the centre are shaped into a number. if you can't see the number... you have deficiency in that number. the next test has red, yellow and white spots and a number coloured in green. If you can't see the number then.... i think you get the picture. SOme people can see the numbers if there is enough light in the room concentrated on them so the deficiency is also dependent on teh ammount of light available/ Hope thsi helps.

2006-11-13 18:02:54 · answer #3 · answered by daixyflexi 3 · 0 0

Both my father and nephew have color blindness, where some colors get confused with others.

There's a family story about my Dad where he came home wearing this great new brown suit that he got an incredible bargain on. He was showing it off, but not getting the expected reactions. Turned out he bought a green suit instead, and it was such a bargain because the shop just couldn't get rid of it. He also mistook a brown lawn for a green one, where he told the owner about how they had a nice green lawn.

Eventually they figure it out as they realize certain things don't match what everyone else is seeing.

2006-11-13 17:46:20 · answer #4 · answered by Uncle Pennybags 7 · 0 0

colour blindness is very, very rare, but colour deficiency is very common, especially in males!
You are tested the same way you get your eyes tested,but instead of letters, you are given a series of dotted colours and must identify the letter or number within these colours, if you fail, then you are deemed to be suffering from colour deficiency!

2006-11-13 17:43:19 · answer #5 · answered by Welshchick 7 · 0 0

OK - your name is Nutty Nikki and we can't tell if that means this is serious or what. There is a simple test you can take in the school nurses office if you are still in school or in the doctors office at you next visit. It is just looking at pictures made up of thousands of dots and picking out words written in the pictures in different color dots. If you can't see the words - you are colorblind. Depending on which you can't see you may be red - green color, or full color, or whatever blind. Takes only minutes and no pain or anxiety involved. Good luck you nut.

2006-11-13 17:58:55 · answer #6 · answered by Anonymous · 0 0

I took a colour blind test years ago for an apprentice electrician, i passed the test and yet...........im colour blind? i see greys as purples and find black and navy hard to distinguish? and im a little confused with certain greens and browns??

2006-11-13 17:53:12 · answer #7 · answered by Anonymous · 0 0

They only have trouble telling the difference between red and green, most people only have trouble if the colours are next to each other, ie; on traffic lights or a plug.

2006-11-14 06:21:18 · answer #8 · answered by Catwhiskers 5 · 0 0

There are a lot of ways to test if you have a color deficiency. Ishahara plates are the most common. They're the ones with "hidden numbers" made of dots surrounded by other dots. It's a quick test that most eye doctors have on hand.

More accurate than the Ishahara plates is a D-15 test, or duochrome test. It identifies which of 3 types of color deficiency you have, if any. AND--it's done quickly. Your eye doctor might have one.

2006-11-13 21:49:52 · answer #9 · answered by eyedoc_04 2 · 0 0

The only real way is to do a Ishihara test. Have a look at this.
http://www.mediacollege.com/lighting/colour/colourblind.html

2006-11-13 17:44:31 · answer #10 · answered by daddykojak 2 · 1 0

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