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[Scud]

I'm apparently such an ignorant. I never heard of green-red color blindess, but now i see on out of 10 post 2 people have it?

so you can't tell red from green?

No offense of course

It's more common than you think, around 8% of males are colour blind. The red-green tag is mainly just the offical term for the type of colour blindess (as in not total colour blindess which does exist but is far rarer).

I personally, which I'm sure is true of others, have problem seeing the difference between similar colours/shades when they are close together. For example, if red (depending on the shade) and brown side by side they would look the same, the same with dark blue and purple, light green yellow/orange to name a few.

You would not know how frustrating it is with colour-coded puzzles in video-games and when using programs like Paint/Gimp when it comes to trying to get the right colour to use.

And yes....I can see traffic lights perfectly well before you ask!

[Mediolanicus]

It's more common than you think, around 8% of males are colour blind. The red-green tag is mainly just the offical term for the type of colour blindess (as in not total colour blindess which does exist but is far rarer).

I personally, which I'm sure is true of others, have problem seeing the difference between similar colours/shades when they are close together. For example, if red (depending on the shade) and brown side by side they would look the same, the same with dark blue and purple, light green yellow/orange to name a few.

You would not know how frustrating it is with colour-coded puzzles in video-games and when using programs like Paint/Gimp when it comes to trying to get the right colour to use.

And yes....I can see traffic lights perfectly well before you ask!

I'd like to add.

It is also known as Daltonism.

And it isn't that we don't see red or green or can't make the difference at all. We just see colours (some or all) different. We've been learning from childhood that that certain frequency of light is named by that word, so we can tell this is red and this is green. It is only when certain shades are rather similar that trouble begins.

My hardest problem is seeing red letters on dark powerpoint presentation backgrounds or blackboards.
When there isn't enough light I also can't see the difference between red or green ink or pencil writing on a paper.

[anubis88]

Wow... I really never knew about this, it must be frustrating sometimes. I really hope i didn't offend anyone by asking about this disease. It was really not my intention. I was just curious

[miotas]

lol. I doubt you would have offended people before, but by calling it a disease you may have. They don't have a disease, their eyes just inteperate light in a different way.

In certain situations it is an advantage as a person with colour blindness has a greater chance of seeing through a camouflage.

It may have evolved to help early humans hunt because a group of 20 hunters with one colour blind hunter is far more effective, and about 1/20th of males are colour blind. The percentage for women however is much lower.