So apparantly Im color blind

[sliceofbread136]

---

Members do not see this ad.

So I look at one of those dot tests like this:

http://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Ishihara_9.png/220px-Ishihara_9.png

And I cant see the stupid number at all. Normally I wouldn't care, but I remember seeing the number a couple of years ago, which means I wasn't always bad at discriminating hues. Do you guys think I should get my eyes checked?

 

[ppfizenm]

So I look at one of those dot tests like this:

http://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Ishihara_9.png/220px-Ishihara_9.png

And I cant see the stupid number at all. Normally I wouldn't care, but I remember seeing the number a couple of years ago, which means I wasn't always bad at discriminating hues. Do you guys think I should get my eyes checked?

Probably. Any implication on practicing?

 

[dmf2682]

Coffee black and egg white

Good song. Sorry about your situation.

 

[jf1987]

Bummer. Go get it checked out to be sure.

 

[nuance]

So I look at one of those dot tests like this:

http://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Ishihara_9.png/220px-Ishihara_9.png

And I cant see the stupid number at all. Normally I wouldn't care, but I remember seeing the number a couple of years ago, which means I wasn't always bad at discriminating hues. Do you guys think I should get my eyes checked?

Yeah, being colorblind is not very limiting in itself, but it is a little worrisome that it developed over time. I don't know much about it, but according to the wikipedia page, inherited color blindness "can be congenital (from birth), or it can commence in childhood or adulthood." But it can also be a sign of macular degeneration, diabetes, or vitamin A deficiency.

My suggestions: get your eyes checked, eat more carrots 😉, and pay attention to any more changes so you can tell your eye doctor.

 

[sliceofbread136]

Yeah, being colorblind is not very limiting in itself, but it is a little worrisome that it developed over time. I don't know much about it, but according to the wikipedia page, inherited color blindness "can be congenital (from birth), or it can commence in childhood or adulthood." But it can also be a sign of macular degeneration, diabetes, or vitamin A deficiency.

My suggestions: get your eyes checked, eat more carrots 😉, and pay attention to any more changes so you can tell your eye doctor.

I just found out my grandfather on my moms side had it (which makes sense because it is x-linked). Still think its worth getting checked out? The fact that my grandfather had it makes me think it is probably genetic, even if it progressed with time.

 

[nuance]

I just found out my grandfather on my moms side had it (which makes sense because it is x-linked). Still think its worth getting checked out? The fact that my grandfather had it makes me think it is probably genetic, even if it progressed with time.

Hmm it really can't hurt to get a professional opinion... but I don't know what qualifies as "worth" it. Personally, I would probably get it checked out just to assuage my own hypochondriacal anxiety 😳

 

[NeuralNetwork]

Keep in mind that the monitor you look at that image with can affect that test (example: LCD or AMOLED will have very different color tones). If you really want to see if you have color deficiencies, see a professional.

 

[ppfizenm]

What I am kind of shocked about is that you need to ask us whether you should go to the doctor or not. If I started to lose the ability to discern between various wavelengths of light I would be on the phone immediately.

 

[sliceofbread136]

What I am kind of shocked about is that you need to ask us whether you should go to the doctor or not. If I started to lose the ability to discern between various wavelengths of light I would be on the phone immediately.

As far as I can tell I see colors fine. It's just I can't see the numbers in the dots.

 

[ppfizenm]

As far as I can tell I see colors fine. It's just I can't see the numbers in the dots.

try printing it out and looking at it. If you can't discern the number chances are it is unrelated to the computer screen and you should seek medical attention if only to confirm that some disease process isn't at work.

 

[NeuralNetwork]

try printing it out and looking at it. If you can't discern the number chances are it is unrelated to the computer screen and you should seek medical attention if only to confirm that some disease process isn't at work.

Also dependent on what type of printer you're using. The professional ones are made to certain standards.

 

[ppfizenm]

Also dependent on what type of printer you're using. The professional ones are made to certain standards.

if he has normalized his printer it shouldn't create such as large issue as to confer a preliminary diagnosis of color blindness when one doesn't exist. Assume standard ink levels

 

[NeuralNetwork]

if he has normalized his printer it shouldn't create such as large issue as to confer a preliminary diagnosis of color blindness when one doesn't exist. Assume standard ink levels

Haha, how does one normalize a printer? If only I could normalize my old piece of junk to print like the top of line models.. As far as the test goes, it needs to be done with their materials and under special test conditions (consider lighting).

Either way, I'm pretty sure this thread is bordering on breaking the "though shalt not seek medical advice on SDN" rule, surprised its still up. For those purposes, I propose the following disclaimer: **All replies to this thread pertain only to the efficacy of varying technologies to reproduce accurate reproductions of intended graphical models. I in no way condone or suggest any medical advice ** 😀

 

[ppfizenm]

Haha, how does one normalize a printer? If only I could normalize my old piece of junk to print like the top of line models.. As far as the test goes, it needs to be done with their materials and under special test conditions (consider lighting).

Either way, I'm pretty sure this thread is bordering on breaking the "though shalt not seek medical advice on SDN" rule, surprised its still up. For those purposes, I propose the following disclaimer: **All replies to this thread pertain only to the efficacy of varying technologies to reproduce accurate reproductions of intended graphical models. I in no way condone or suggest any medical advice ** 😀

You must have an old printer. Even the 35 dollar ones have tests now you do when setting it up. If you want to take in every little factor sure. They print these cheap little tests off though to get the attention of possible color blind individuals so they will come in for proper tests.

Anyway arguing over this is trivial. You have no proof to support your side and I have none to support mine. I still think OP should see a physician.

 

[mauberley]

I still think OP should see a physician.

This.

Knowing if you have some color perception deficiency is good for when you go through histo and other color-heavy material, so you're not freaking out about not being able to perceive what you're supposed to see.

 

[MT Headed]

This.

Knowing if you have some color perception deficiency is good for when you go through histo and other color-heavy material, so you're not freaking out about not being able to perceive what you're supposed to see.

Or, more than likely, why you can easily see the features nobody else can.

The US Army hires the colorblind because they can see through camouflage that rentinotypicals can't.

 

[dmf2682]

Or, more than likely, why you can easily see the features nobody else can.

The US Army hires the colorblind because they can see through camouflage that rentinotypicals can't.

Neat.


Separately, I kind of wonder if the op is trolling. Reminds me of the poster a few weeks back who insisted she had aspbergers

 

[ppfizenm]

Neat.


Separately, I kind of wonder if the op is trolling. Reminds me of the poster a few weeks back who insisted she had aspbergers

Keeping with the military team the only way we can know for sure: water board the OP

 

[TXKnight]

So I look at one of those dot tests like this:

http://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Ishihara_9.png/220px-Ishihara_9.png

And I cant see the stupid number at all. Normally I wouldn't care, but I remember seeing the number a couple of years ago, which means I wasn't always bad at discriminating hues. Do you guys think I should get my eyes checked?

Maybe they changed the slide?
there are some slides that are control slides (everyone will see) and other that will tell what kind of daltonism you have (ie. deuteranopia or protanopia) so depending on the slide you might see nothing, one or two numbers in the same plate.
I am colorblind and I see a VERY,VERY faint 21.

 

[sliceofbread136]

Maybe they changed the slide?
there are some slides that are control slides (everyone will see) and other that will tell what kind of daltonism you have (ie. deuteranopia or protanopia) so depending on the slide you might see nothing, one or two numbers in the same plate.
I am colorblind and I see a VERY,VERY faint 21.

My girlfriend made me look at a ton of these and I can't see any of them. See even shows me where they are and I still can't see them. I think I'm going to see a doctor, only because I'm a hypochondriac...

 

[ahens23]

Probably so. But I think it would be even more important to get a spell check. Apparently*

 

[sliceofbread136]

Probably so. But I think it would be even more important to get a spell check. Apparently*

Spelling is not my strong point

The only place it seems to be a big deal is the internet.

 

[TheVillain]

Number? What number?

 

[GarfieldKoe]

Coffee black and egg white

 

[Drrrrrr. Celty]

Number? What number?

Sounds like you might have X-linked Red-Green colorblindness, though it only really applies to being unable to distinguish red and green when they are really close like the above, so it's really red-green discrimination blindness.

There is a 74 in red.

 

[TheVillain]

Sounds like you might have X-linked Red-Green colorblindness, though it only really applies to being unable to distinguish red and green when they are really close like the above, so it's really red-green discrimination blindness.

There is a 74 in red.

Oh. All I see is red and orange circles with a vague outline of green dots toward the middle which might represent 21. Is that normal?

 

[sliceofbread136]

Oh. All I see is red and orange circles with a vague outline of green dots toward the middle which might represent 21. Is that normal?

I'm guessing you are slightly red green color blind, just like me 🙂

 

[TheVillain]

Hmmm. Also, my eye-sight has been deteriorating at a steady pace . . . you guys think I should check it out?

 

[sliceofbread136]

Hmmm. Also, my eye-sight has been deteriorating at a steady pace . . . you guys think I should check it out?

Probably. I got mine checked out and they were fine, but better safe than sorry 👍

 

[TheVillain]

Probably. I got mine checked out and they were fine, but better safe than sorry 👍

Sounds like a good idea, although

Last time (a little more than a year ago) I was getting a slightly stronger prescription for my lens strength, and when I told the optometrist about my worsening eyesight, she told me its normal.

 

[Bacchus]

Sounds like a good idea, although

Last time (a little more than a year ago) I was getting a slightly stronger prescription for my lens strength, and when I told the optometrist about my worsening eyesight, she told me its normal.

I had the same conversation with mine. She said I should expect to completely normalize (read: don't get lasik) until I'm probably in my early 30s. She attributed that age range to me being completely done with medical training and probably not stressing my eyes as much.

 

[Camy99]

Wait.. why are a bunch of people seeing 21? Because I see a 74... Is that a special disease too?

 

[Morsetlis]

Maybe they changed the slide?
there are some slides that are control slides (everyone will see) and other that will tell what kind of daltonism you have (ie. deuteranopia or protanopia) so depending on the slide you might see nothing, one or two numbers in the same plate.
I am colorblind and I see a VERY,VERY faint 21.

It's a 74, what's wrong with you 😛😉

Protanopia filter:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=p

Deuteranopia filter:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=d

Note that both cannot discern a "number". Their red and green wavelength perceptions have been conflated into one (due to loss of the other).

Tritanopia filter:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=t

Blue colorblindness. A (weird) number close to 74 can still be seen.

Achromatopsia:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=m

Nope, nothing.

--

I couldn't get a filter to show me the 21, but sliding values in Irfanview demonstrated that reducing the Blue channel and increasing the Red and Green channels close to each other can turn the 74 into a 21.

--

Ok I finally made the 21:

 

[TheLesPaul]

Probably. Any implication on practicing?

You can't become an ophthalmologist for sure with color-blindness. Not sure about other surgical subspecialties, but anything that may require microsurgery or operating under a microscope (?ENT, etc.) will possibly be out as well. Macrosurgery (general surg, ortho, etc.) should be ok.

 

[CaptainSSO]

It's a 74, what's wrong with you 😛😉

Protanopia filter:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=p

Deuteranopia filter:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=d

Note that both cannot discern a "number". Their red and green wavelength perceptions have been conflated into one (due to loss of the other).

Tritanopia filter:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=t

Blue colorblindness. A (weird) number close to 74 can still be seen.

Achromatopsia:

http://colorfilter.wickline.org/?a=.../e/e0/Ishihara_9.png/220px-Ishihara_9.png;t=m

Nope, nothing.

--

I couldn't get a filter to show me the 21, but sliding values in Irfanview demonstrated that reducing the Blue channel and increasing the Red and Green channels close to each other can turn the 74 into a 21.

--

Ok I finally made the 21:

The only one of those I can see is the tritanopia one.

 

[Morsetlis]

The only one of those I can see is the tritanopia one.

It means you're normal.

The filters are meant to simulate looking through the eyes of somebody who were lacking some photoreceptors. The original image:

 

[CaptainSSO]

It means you're normal.

The filters are meant to simulate looking through the eyes of somebody who were lacking some photoreceptors. The original image:

Ah, ok. That's interesting.

 

[Dr McSexy]

You can't become an ophthalmologist for sure with color-blindness. Not sure about other surgical subspecialties, but anything that may require microsurgery or operating under a microscope (?ENT, etc.) will possibly be out as well. Macrosurgery (general surg, ortho, etc.) should be ok.

I don't think that's true. We just had another thread not too long ago talking about color blindness, or at least I thought. Some ophthalmology residencies do have restrictions that you can't be colorblind/must have normal vision, but not all. And you may not be able to do certain fellowships (retina).

I also assume it would matter whether or not you are a trichromat(more common) or dichromat. And exactly what color deficiencies and/or color discrimination problems you have.

Personally, I never knew I was colorblind until I was in college and ran across a colorblind challenge in the book I was reading. I fail most of the test plates as well.

I had no troubles w/ histo or pathology for what it's worth.