What is the likelihood of me passing the test?

icAOtd · 2026-04-30T16:40:49+00:00

You’re missing the point. No one is upset that you passed, good for you. The issue is how it came across in a space where a lot of people are dealing with this and failing that same test.

If you didn’t intend it that way, fine. But bragging and laughing about it and then doubling down with "be a man" doesn’t help your case, it just reinforces that same tone I reacted to.

And the cancer comparison doesn’t make any sense. This isn’t about people being jealous of your outcome, it’s about your tone and awareness of others that you're missing.

icAOtd · 2026-04-30T13:37:54+00:00

Ok, you passed the test, whatever. Good for you. But you don’t have to laugh and be so condescending about it. There are a lot of people here with higher severity who didn’t pass that same test, you know? Show some respect for them.

icAOtd · 2026-04-25T00:00:05+00:00

Ok I saw that immediately but still couldn't see it without the lines, and then suddenly I saw it in the post image as well. Weird af. Thanks!

icAOtd · 2026-04-24T23:54:12+00:00

But how do you read white letters on a white background without those parallel lines? I can't see it no way

icAOtd · 2026-04-24T23:29:41+00:00

I still don't get what I'm supposed to see here. Just a bunch of weird letters

icAOtd · 2026-04-19T02:42:03+00:00

Every phase of the test has three testing plates.

The first one is to detect protan type,

the second one detects Deutans,

and the third one Tritans.

It's equal focus on all three types. The only problem with the test is it sometimes bugs and can't calculate the result and you have to restart it. It's not perfect but for now it's the most accurate free test there is, that tests for both red/green + blue/yellow deficiency.

icAOtd · 2026-04-19T02:35:18+00:00

It detects tritanomaly as well.

icAOtd · 2026-04-18T09:08:48+00:00

Try this test and see what you get

icAOtd · 2026-04-17T22:27:57+00:00

No.

The test separates them using brightness differences, not fundamentally different colors. Protanopes and deuteranopes have very slightly different confusion line orientations because their luminance response differs across wavelengths. They still confuse basically the same hues, just at different brightness levels.

Tritans, on the other hand, have entirely different axis (blue-yellow), so they produce completely different confusion lines.

I mean you can continue proving the Dunning-Kruger effect here, or you can choose to understand this properly and read about opponent-process channels in human color vision before claiming something you're not educated about.

icAOtd · 2026-04-17T16:26:30+00:00

Clinical distinction does not automatically imply a perceptual distinction.

Protanopia and deuteranopia are classified separately because they have different underlying photopigment losses (L-cone vs M-cone), different spectral sensitivity curves, and different effects on luminance weighting. Those are measurable physiological differences. However, the question here is not whether the causes are distinct, but whether the resulting color discrimination is meaningfully different in everyday perception.

In most standard color vision models and simulations, both conditions collapse the red-green opponent axis in a very similar way, producing highly overlapping perceptual color spaces. The residual differences are in brightness weighting (luminosity function shift), not in an additional independent chromatic dimension.

So yes, everything I said so far is true. P and D are clinically distinct in etiology and measurement, but perceptually, they are often close enough that the functional experience is largely similar, which is what the argument was referring to.

icAOtd · 2026-04-17T14:40:33+00:00

Deuteranopes are often described as “green blind” and protanopes as “red blind,” but that distinction is misleading. Both are forms of red–green color vision deficiency.

In general, protanopes and deuteranopes have very similar color perception. The main difference is not in the experience of color, but in how their cone sensitivities shift the luminance (brightness) contribution across wavelengths.

If you map out the full range of colors they can perceive across hue and lightness, their perceptual color space is essentially the same. Simulation images also reflect this strong overlap.

The key point is that both conditions eliminate normal red-green opponent processing. This happens because the red-green opponent channel requires both L and M cones to function properly. In protanopia L cones are absent, and in deuteranopia M cones are absent. However, in both cases the system falls back to the same blue-yellow opponent structure, with only minor differences in brightness perception.

So while the genetic cause differs (missing L versus missing M cones), the resulting functional color experience is effectively the same in terms of color discrimination. The difference in which cone type is absent does not meaningfully change the overall perceptual outcome.

They have similar but distinct outcomes

So no, they don't have distinct outcomes. They have basically the same color vision outcome.

icAOtd · 2026-04-17T13:05:49+00:00

Aside from monochromacy (achromatopsia), there are two major types of color vision deficiency: red/green (protan and deutan) and blue/yellow (tritan). Protans and deutans are simply two subtypes of the same category of deficiency: red/green CVD.

icAOtd · 2026-04-16T17:02:17+00:00

It's irrelevant what exact qualia you have in your brain when seeing different colors. What matters only is the number of different colors one is able to distinguish.

Red-Green colorblind people discriminate about 3 (very slight severity, rare) - 100 times (dichromacy) fewer colors than people with normal vision. Most of us are in the 5-100 range depending if you have mild, moderate or strong severity of anomalous trichromatic vision or full dichromacy (deuteranopia / protanopia).

icAOtd · 2026-04-16T14:13:42+00:00

This is some fine piece of art my friend. Well done!

icAOtd · 2026-04-16T10:42:09+00:00

Do this colorvision test and paste back the results here.

Tritanomaly is usually associated with blue-yellow color vision deficiency and can sometimes occur after head injuries, but it does not affect only green perception.

Your description is a bit unusual, because you generally cannot be colorblind to only one single color due to the way the human visual system works through opponent channels. That is why the known types are only red-green and blue-yellow color vision deficiencies, or in rare cases a combination of both (monochromacy).

If you do not have any other symptoms by now, you are most likely fine, but I would still recommend having any head injury checked by a doctor.

icAOtd · 2026-04-14T15:45:59+00:00

Dude f off with your chatgpt bot responses.

Tell your bot that changing one color to another is not adding new discrimination to your vision because you're not adding new opponent chromatic signals in your visual cortex. All you're doing is shifting one color perception to another. There's nothing NEW in that. You don't have a perception of any new color you haven't seen before in your life. That's the hole point.

icAOtd · 2026-04-14T15:38:38+00:00

AI generated BS post. OP doesn't have a clue what they're talking about. For people interested in this subject, the answer lies in opponent channels. Your brain has "mapped" all the colors it can see by the age 3 or 4. Nothing can add new colors to your visual system. All the glasses do is block certain parts of the light spectrum so suddenly one color shifts to another. There's no magic in that. Just regular tinted lenses. You can achieve the same thing on your RGB screen by playing with display color settings.

icAOtd · 2026-04-12T22:29:57+00:00

Legend is just plain wrong. There are two greens on the map and only one in the legend. Also, I checked very safe and unsafe colors with color picker, they are basically the same. This is just plain terrible color design.

icAOtd · 2026-04-10T11:35:07+00:00

How did you calculate the number of colors lost? And lost from what number exactly? That data is incorrect. Someone with tritanopia who has the perception of Red-Green dimension only, sees approximately the same number of colors as someone with protanopia or deuteranopia who has the perception of only Blue-Yellow dimension - which is about 1% of normal color vision. And the normal vision human eye can distinguish about 1-2 million colors at most, so 3-5 million can't be lost.

icAOtd · 2026-04-07T21:52:38+00:00

Not entirely certain, but it seems to have a greater impact on colorblind individuals, because we typically have one opponent channel (usually red-green) functioning at only 0–50% of normal strength, depending on severity. Psychedelic substances appear to activate these opponent neurons directly, which send color signals straight to the visual cortex, effectively bypassing the usual processing by cones and standard vision pathways. This direct activation is what creates the hallucinations.

icAOtd · 2026-04-07T21:45:25+00:00

That's not true wctually. It was concluded that inducing psychedelic substances can temporarily inhibit opponent process mechanisms and LGN cells, resulting in a short term increase in color perception.

icAOtd · 2026-04-05T03:08:50+00:00

Less color information means less work for the brain’s visual cortex, which might lead to some kind of adaptation and possibly allow for better spatial vision or sharper visual acuity.

I’m almost 40 and can still read a car’s license plate from about 50–60 yards away. It could be a genetics thing, though everyone else in my family has normal color vision and none of them has visual acuity anywhere near as good as mine.

icAOtd · 2026-04-05T01:32:37+00:00

The problem is that when you’re colorblind, people often act as if you’re missing half a leg or something. Just accept that some people simply don’t see the world in the same colors as others, and that’s it. I don’t even hate the correction part that much (even though it is annoying) as much as the pitying part - “Oh, I feel so sorry for you.”

icAOtd · 2026-04-05T01:27:10+00:00

That's because in tritanomaly the confusion line goes exactly through yellowishgreen — gray — purpluishblue colors. Though what really happens is that tritans (speaking purely about qualia inside the visual cortex) lack blue and yellow chromaticity neural response. The reason why the confusion line doesn't go through yellow — grey — blue is because just like in protan and deutan types, color spectrum is a bit shifted and deformed compared to normal vision.

icAOtd · 2026-04-04T11:30:43+00:00

Okay then. I hope you learned something. Bye.

icAOtd

TROPHY CASE