Color Blind (1 Viewer)

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These 5 are incredibly similar to me. Where I've marked I can see some shading or blending difference. I'm pretty sure it's green on the left and red on the right, but that's partially from knowing that the blue is blending to purple and then red. That top one, the edge of the green and the edge of the red are virtually identical. The other 4 reds seem just a bit darker than the top one, but they're all equally confusing compared to the green.
 
SaintRob said:
I'm pretty sure it's green on the left and red on the right
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They're kind of "trick" spectrums -- they're basically color wheels "unrolled" into a strip. Both the left and right edges appear red to trichromats (the 'normies').

The horizontal marks you made ... you laid them right on top of where trichromats perceive bright, highly-saturated green.
 
Doug B said:
They're kind of "trick" spectrums -- they're basically color wheels "unrolled" into a strip. Both the left and right edges appear red to trichromats (the 'normies').

The horizontal marks you made ... you laid them right on top of where trichromats perceive bright, highly-saturated green.
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LOL! Its red on the left too??? So it's red blending to orange then yellow to green? Those mid sections with horizontal lines are yellow-ish tan to me.
 
Also, FWIW, when I see a rainbow in the sky, I only see yellow and blue. I always thought the traditional pictorial representation of a rainbow with 6 or seven colors was an exaggeration until I had someone explain to me that there were literally other colors in a rainbow in the sky.
 
SaintRob said:
I always thought the traditional pictorial representation of a rainbow with 6 or seven colors was an exaggeration ...
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Rainbows are cool, but the 6-/7-color representations are exaggerated for the most part, mostly in the proportion of the color bands to each other. You don't typically have six or seven easily discernable stripes of color of equal width in a natural rainbow. At least not the ones I see in the NOLA area.
 
Doug B said:
Color blindness can vary in severity. For you, the top three spectrums below might resemble each other, but the ones in the middle (protanopia and deuteranopia) will look different. For someone with profound red-green color blindness, the top five spectrums should resemble each other.

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The top three are nearly indistinguishable to me. 4 and 5 look very similar but I can tell some differences in shade on either of the ends.
 
Optimus Prime said:
This was a very interesting article

How do you not know you're colorblind into adulthood?

I've always heard the red/green colorblind is exactly that, that they can't distinguish between the 2 colors (this article says it) but never elaborates, does that mean they seem them both as red? both as green? or both as something else? (gray maybe?)
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When my 7-year-old son, Everett, looks around our house, he sees the bright red Georgia Bulldogs flag on our front porch as a yellowish brown. Vibrant pink begonias in our garden are white. Inside his paint set, what looks to me like a kaleidoscope of dazzling pigments is to him a collection of murky browns, khakis, yellows and blues.

Everett has red-green color deficiency, commonly known as being colorblind. I don’t, but I recently used an app called the Chromatic Vision Simulator to glimpse how he views our surroundings. What I saw, above all, was a world without many of the color cues that the rest of us casually use to categorize, sort and learn — and that teachers use to pass information on to others.

Countless students like Everett have a vision deficiency without even knowing about it. One out of every 12 boys, or people assigned male at birth, are colorblind, and 1 in 200 people assigned female at birth have the condition, too.

Despite this prevalence, only 11 states test for colorblindness during elementary school fall vision screenings. Even ophthalmologists don’t routinely test for it. Including colorblindness screenings in those tests would be a simple move, and one that could make learning easier for thousands of American students.

In a class of 24 students, there is approximately one child who can’t see the pink marker the teacher uses on the whiteboard, who is unable to denote their team’s jerseys in gym, or who wonders why the rest of the science class is marveling over a chemical reaction that doesn’t look any different to him.

In most cases, being colorblind doesn’t mean people can’t see color, but that they see them differently. Often, certain hues — such as red and green — are indistinguishable. Studies suggest that 80 percent of classroom learning is visual, especially in elementary school, where colors play a large role. Using colors to denote specific information — such as a vivid pie chart, a color-coded map of the United States, or a wrong answer marked in red — can cause colorblind students to misunderstand.

Teachers and parents can support these pupils by making easy modifications. However, they need to know there’s a vision deficiency in the first place.

According to research by a maker of color-vision glasses, many children don’t find out they’re colorblind until 7th grade, and many others are unaware into adulthood. Imagine how that can affect a child’s confidence. Scott Hanson, a colorblind principal in Cottonwood, Minn., told me that he felt relieved when he discovered that he was colorblind in high school. “Suddenly, I understood why I hated art class as a kid and was teased for coloring Minnesota Vikings jerseys blue instead of purple. When you’re unsure of your colors, you’re unsure of everything,” he said.

When schools in Roanoke County, Va., started colorblindness testing in 2018, they discovered that almost 3 percent of the student population was colorblind. And many children who needed special-education services were colorblind, too. The findings made officials wonder whether the students really needed those services or whether they had just had a hard time learning because of their vision deficiency.

Rohit Varma, a doctor and researcher who founded the Southern California Eye Institute and has studied color vision deficiency in preschool-aged children, says that’s the problem with not routinely testing kids for colorblindness. “From an early age, tasks that children do at school require color. When a child is confused by those tasks, it’s easy to assume that they are not intellectually able when they just see the world differently,” he says............


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it depends on how deficient you are with red and green. I've taken that Enchroma test and I'm like 75% green and like 80ish% red, and 100% blue. So, I can see red and green just fine, I have trouble with certain brown shades of them. So, when I look at the number dot plots, I can see some, but not all numbers.
 
It's also a function of monitor.. I took it again and did worse for Green.

Here's an example of one I can't really make out. I'd maybe guess a 3, but I'd be just guessing.

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I found if you stare at 1 dot long enough, the entire image becomes white. I think that means I’m bored.
 

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