I was trying to NOT look at the "answers". I had a hard time seeing the one on the bottom left, but when I looked at the answer, it popped right up. Maybe you should have the image without the answers.

Remember to realy do this you are gonna need the correct printed sheets.

My question with these is are they all suppsoed to be the same strength?

Like for example:

Strength goes for me (even in the doctors office)

24
56
45*
6
8
29


Everything 45 an after requires a little thinking, like I can't just glance at it and tell. How about you other people that are also not color blind?

Sim Daltonism is a color blindness simulator for Mac OS X. It filters in real-time the area around the mouse pointer and displays the result — as seen by a color blind person — in a floating palette

http://www.michelf.com/projects/sim-daltonism/

So the 25 is easy and I can get the 29 if I really follow the dots...the rest are completely impenetrable to my vision...but yet I can see a distinct difference between the vegetable pictures. My family has a history of color blindness, my maternal grandfather and also one of my two brothers. I just think those pictures are misleading. That would be an example of very strong red green color blindness.

45, 6, and 8, i could not see for the life of me and 29, 56 i need to see the anser to see. I knew that i was color blind but wow thats like super color blind.

No problems excpet for #6 (lower left), it took me a little longer to make it out.

25, 25ish, nothing, 56, nothing, nothing

And I'm not allowed to be a private pilot.

I had no problems.... not to brag... sorry.... The hardest one for me would be 6 but I got it right away.

I can only see the top left (25) disc. Even with the answer at the side i still couldn't see the number in the disc, but i am monochromic colourblind so i didn't really expect to

:P

im with tim i can only see the "25" disc. i never knew i was colour blind. i should go to the optometrist and get my eyes checked out...im long over due.

That was so easy i got that done in 5 seconds

ok...the yellow in the bottom-left one made it a little confusing but not implossible to see. I prefer the ones that make colour-blind people see a different number. then you really can tell if you are colour-blind, or, if you're like mee, being awkward, you can see both of them. oh confuddlementations - (i think that's a word...maybe)

i saw all of them the bottom ones were harder but it was kind of the same.

yeah the six was hard for me too and im not color blind but i found that(if your not color blind) if you cross your eyes and look at one of the images with the six, it looks clearer

45, 6 and 8 are the ones I can't make out no matter how hard I tried.

25 was easy and 56 and 29 didn't take too long.

I'm told I'm color-blind to red groups.

There is actually more to these than (normally) meets the eye. My meteorology teacher in college did this test to the class and there were a few people who saw different or multiple numbers in each circle. The reason for this is because some people can see further into the ultra violet or the infrared end of the electromagnetic spectrum. This is a small portion of the population, but it is kind of neat if you realize you are one of these people. So if you happen to see multiple or just different numbers than normal people, don't feel bad.

No problem seeing any of them. All the numbers stick out like a sore thumb.

I am color blind and the only one I can see is the 25. However the example the show with the fruit is way off.

i got the same results as Me.

the 6 gave me troubles but once i stopped to focus it came clear

? wow I didnt know that peeps here having trouble about seeing the number inside.

6 is the hardest 4 me but not 2 hard,
i love colour so thank god im not colourblind ;P
lol

I can see clearly 25 and 56. The other numbers require some effort from me - around 5 sec/number, because I need to recognize every circle from the contour in order to indetify them. This is a sort of mystery for me: How come I could recognize all colors, but I have some troubles with the tests? When I draw 2 rectangles in Photoshop with the "difficult" colors, extracted from the test with "6", they are definetly different. Who could explain me what is wrong in my case? 10x:)

i can see all

Uhhh Matt... that 2nd picture only looks way off to you (and others colorblind). It shows the rest of us an example about what it's like being colorblind.

i could only see 25 help me!!!!

ouch. only 25? Well that sucks

25...... Just confirming what i already know really.

i have done this before, you also have to line up colors by shades wich is harder, also there are some where color blind people see numbers that are not there

Is there software available to create more colour-blindness test images?

it took me some time to figure out 29, 8 and 6.
and beleve me i sooo DID NOT look at the answer.
my eye is fine and i do not confus red and green

I'm colour blind with blue and yellow, but I already knew that

To me they were pretty easy, well i looked at the awnser for six then it jumped out at me, but then again I have thirteen year old eyes so...

none of these were hard at all for me and i didnt realize there were answer till i read the comments

it is actually not possible for women to be colour blind. But they can pass the condition. i know because my cousin is blind,my aunty has the gene but doesn't have it,and my cousins opa has it as well. This is what the doctor told them anyway

In regards to comment #18, I am truly colorblind, i can only see the 25 in the 1st disc. I also have to agree, the fruit and vegetable picture is totally inaccurate the top picture looks normal to me and I'm colorblind. The bottom picture looks way off from what I see. FYI it is possible for women to be colorblind. It is extremely rare but it is possible, through enough genetics and generations of a family. Albeit the woman is the only one able to pass the gene, it is absolutely possible for women to be deficient in color vision.

for the numbers it helps if you blur your eyes

that is weird

The tests are indeed used to determin colorblindnes and give a good indication.
The pictures of the fruits are nonsense. It is not possible to show people what colorblind people "see".
To me the second picture is completely wrong and I am red-green collorblind.

Ron

I am NOT color blind at all, I won without noticing the answers! ALL BOYS are a little color blind, not girls. Some may be, but not me!!!! I am a huge fan of illusions, I beat all of them. Good luck!

Holynarf (16) explaination is bang on! the spectrum of visible light is a very narrow part of the overall spectrum of radiation, starting from low freq radio waves up to high freq gamma rays, humans have adapted their eyes to actually see a vary small potion of the spectrum that we call visible light. Everyone sees the visible potion a little bit different than others, some more, some less, and for color blind people…a lot less than average. Other animals, such as dogs, have an even narrower view of the visible portion of the spectrum.

STNG fans will remember that gordie was completely blind but had his visor. He still couldn’t see the visible spectrum, but he could see the higher freq parts of the spectrum that other humans couldn’t! remember he was always looking into the reactor, rather than relying on his computers to diagnose potential problems.

Use Google Images and search “radio waves to gamma rays spectrum” lots of nice charts that explain the spectrum.

im very badly color blind and have know for decades. the pictures of fruit is typicall explanation of color blindness from someone who is not color blind. i dont think there is a CB person out there that would agree that those images are a good example. sometimes people say to me "i wonder what it would be like to see through your eyes" i always throw that question right back at them.

a good color blind test:
here

I'm colour blind, but I already knew that... Strange thing is that picture, I can see the difference...hmmm...confusing. I usually have problems with purple.

Oh my....every single one looks like 25 to me....

I knew that I am color blind in fact I can only see 25, 56 and maybe 29. Although the two fruit pics are obviously different to me. I can see them in two distinct shades of color......so....? perhaps my color blindness is not too severe; it it possible?

-REPLY TO COMMENT #35

It is possible for women to be color blind, it is just less likely. The trait for being colorblind is on the x chromosone. Men have an x and a y chromosone. Women have 2 x chromosones. If a women has the colorblind trait on just 1 x chromosone she will not be colorblind, but can pass the trait to her offspring, she needs to have the trait on both x chromosones for her to be colorblind