Understanding the Colour Blind Test - Including Self Red / Green Colour Deficiency Test - Dr Gill

Understanding the Colour Blind Test - Including Self Red / Green Colour Deficiency Test - Dr Gill
NB IF YOU WANT TO JUMP TO THE COLOUR VISION TEST, YOU'LL FIND IT AT 11:03 MINS IN
One of the lesser approaches - by medical students anyway - parts of the neurological examination is looking at colour vision
There is a requirement for red saturation to be tested in the cranial nerves, as this can indicate optic neuritis, the further investigation into colour vision is often omitted
This is a shame as 1:12 men, and 1 in 200 women have a colour vision deficiency.
Whilst the commonest is red (Protan) and green (deuteran) deficiencies, there are other rarer forms, but they are beyond the scope of the simple office Ishihara test.
The Ishihara colour blind test allows for determining if someone has red/green colourblindness and also help diagnoses the type
Ensure you what to the end of the video, both for the initial test, and also how to determine the type - if any - of colour vision deficiencies you might have
Some people may experience an ASMR effect from this video
#DrGill #IshiharaChart #ClinicalSkills
You can now consult via video or in person with Dr Gill at Dr Finlay’s Private Practice - www.drfinlays.co.uk/services/...

[@DrJamesGill]

The self test, and introduction to using the test at home starts @ 11:03

[@50sfan14]

Thank you so much! Deuteranomaly GANG 👁

[@ginebraman]

I scored 3 with normal vision. How bad is that?

[@isacson02]

A very interesting concept to try by yourself, I do wonder though if I may have been a bit sloppy or not, because when scoring I got 16. plate 9 was the problem here, I wrote down 21 but when you said that they correct number (for normal) is 74 i could clearly see it.

[@deveryday1]

@@50sfan14 to jojo's kkkkko

[@deveryday1]

@@ginebraman o

[@JappaB]

As a colorblind guy I just can't wait to get all of these wrong!

[@DrJamesGill]

How did you do?

[@JappaB]

@@DrJamesGill Lets just say that my knowledge of myself is spot on hahaha

[@Nicky392WB]

Right there with you buddy

[@juddmang1]

Same here!

[@AronBenderMedia]

Same!! Lol

[@foxhound900]

When someone opens up about being colorblind they need to understand that they are subjecting themselves to a lifetime of people going, “Oh really?? What color is this then??”

[@DrJamesGill]

Tell me about it!

[@stevemiller.]

Green and red deficiency but i can distinguish solid red from green and know what it looks like. Its when they go into different shades that i just cant see it as what im supposed to.

[@tommyshaw2524]

Yep kids find it mind blowing my daughter and nieces ask me more than anybody has . Did have a geography teacher make fun of me and put me down in front of the hole class at school about it

[@105381000]

When I approach a traffic signal, I remember: top is stop; low is go; middle is, if you must.

[@dergereatl8796]

Same here. Not colorblind but i cant smell. Every time people go: smell this, or what doesbthat smell like?

[@randomcookieboy]

As someone with Red/Green troubles, I'm gonna start using "Color Deficiency" as a term a lot more often. Too many people, my parents included, talk to me about it like I outright can't see the colors.

[@DrJamesGill]

I agree, the number of times I get pointed to things “what colour is that?” It gets… tiring

[@edstructor666]

as spanish speaker it always felt that colorblind was way to reductive. In spanish we call us "daltonico" dalton as in john dalton.

[@nyx8476]

@@DrJamesGill my teacher actually tried this test today, it scared me cuz I can't see red or green properly, and my classmates asked me "what color is that"

[@JappaB]

Im 100% down for more vision/colorvision related content!

[@DrJamesGill]

Ok. Maybe we can look at the genetics, and how the retina actually works

[@chuckoneill2023]

@@DrJamesGill Thanks. Looking forward to it.

[@emrekt22]

Would be wonderful

[@jackworrall89]

When I was about 10 years old I kidded on I was colourblind so that I wouldn't have to take a maths test as it involved different coloured items on a table. The maths teacher even apologised to me and I couldn't believe I'd gotten away with it! Anyway, it turns out I am actually colourblind and it's limited my career choices ever since. I graciously accept the irony as its no less than 10 year old me deserves.

[@Rinalicia]

I have never had someone go through and explain my colorblindness in detail! Thank you so much for helping me figure out what kind of deficiency I have!! Your videos are amazing

[@ronaldmcdonald8303]

It's because your eyes are genetically programmed to see in dim light, rods are more sensitive then cones. A lot of colour blind people have excellent eye sight in the dark. It's left over from the stone age before we knew how to light or start fires to see, especially in northern Europe. People with colour blindness are supposed to live in darker parts of the globe. I think at least if I'm not mistaken!

[@Siviqs]

I sometimes get so bored i just watch anatomy or anything involving some form of a medical video, listening to Dr. James Gill while going to sleep is so soothing, the voice is subtle, comforting, I genuinely feel so relaxed.

[@dakeyress]

the number of images/exemples used to seriously/comically illustrate the statements are amazing!

[@DrJamesGill]

Thanks. Given these longer detailed videos, I’m trying to break up the video with examples - as it helps me learn

[@nesrinserip-calil8197]

This was a wonderful video. Beautifully put together, extremely well explained. Absolutely great! I hope you will bless us with as many interactive videos as possible. Thank you and wish you best of luck in the future!

[@JohnyDamas]

Very informative as always. As a colorblind myself, I appreciate this one very much, Dr James! (Strong) Deuteranomaly gang rise up!

[@brittaniebrockett507]

This was some of the most relaxing and informative unintentional ASMR I’ve seen lol

[@Kaynstein]

This video is pretty dope. Thank you for sharing and clarifying the differences between color blindness and weakness. Channels like yours are a treasure.

[@DrJamesGill]

Thank you. Glad it has been useful

[@dustinmiller6364]

i've already been diagnosed years ago but its makes me laugh every time I try a test and I score miserably. great video and i'd love a more in depth video on what caused color deficiencies.

[@Riotlight]

Me too, I scored about 3 this time 😂😂

[@ianchartier2622]

@@Riotlight same I just don’t see anything from pages 2-6 and then all the numbers after that were the deficiency ones😂

[@instinct3510]

@@Riotlight i got 7, 8 and 9 right. In the others i didn't see any number

[@Brains45636]

This is so relaxing. His voice is so soft and caring about his craft. Would make great asmr

[@christallarico6922]

The production is great, love the transitions.

[@thekilla1234]

I was confused at first, I was able to see the numbers faintly in almost all of the cards and normally I can't see anything past the first 3. I figured out that the night mode on my monitor (that gives the monitor the warm orange tint) makes the numbers WAY easier to identify.

[@Martoune112233]

As someone who has struggled with red/green deficiency my entire life, please go into as much as possible about this topic, I would love to understand more about it. Thank you again for all that you do.

[@DrJamesGill]

We’ll definitely look at the retina and the genetics in the future

[@popelgruner595]

@@DrJamesGill Yes, please.

[@ronaldmcdonald8303]

You may be slightly colour blind, but I bet you can see excellently in the dark. Colour blind people are more sensitive to light because rods are more adapt at detecting dim light. It's genetic. You must have some northern European blood in you!

[@davel8686]

I used to just call myself “lazy” with my colours. I could never be bothered saying whether things are light or dark blue for example. I didn’t believe in purple that kind of thing. I learned at 25 that I did have some version of colour vision problems albeit mild. And thanks to this video I’ve learned I have deuteranomaly. And even a mild version of that it looks like.

[@jervisestacio]

A very detailed video. Thank you Doc! I can now defend to my work that even though I am a Deuteranomaly, I can always tell the difference between primary colors

[@TheFrenchMansControl]

Column three got me panicked for a second there! Great video!

[@dinosaur4141]

Agreed! Vision content is definitely interesting and oddly soothing. I was expecting to at least get a few as I don't consider myself that colorblind. I only got two right out of the first 20+, haha.

[@DrJamesGill]

Oops 😬 It’s always possible I’ve not colour corrected properly, as I can’t see them myself, so if you are concerned check with your optician 😊

[@nazemabdrabo2584]

watching you is like watching bob ross draw am so happy to have found this channel!

[@xDaanster]

Thanks for the video doc! Would love a video about the genetics and cones. As a colorblind biology student, this sort of things interest me the most, even though I only have a red green color defect in my right eye (my left is fine, right got damaged pretty bad when I was a kid and left me with the colordefect).

[@DrJamesGill]

I’ll certainly put it on the list 😊

[@eddyperez3769]

Thank you this will help me win my court case for driving through a "green light"

[@Aerothorn]

As someone with protanomaly (and possibly more!) This is fascinating and I'd love more videos on the subject.

[@penguinkaiser]

Whoa, I put on a video to learn about color blindness but instead I got an introduction that made me question reality. Good stuff

[@DrJamesGill]

🤣 always here to help

[@floverdevel]

I REALLY ENJOYED this video !!! I would love to see more videos like this in the future 👌🏻🙋🏻‍♂️

[@darksector_0675]

Why is this guy just so relaxing...

[@cdog7821]

Your voice was super relaxing in this video! Pls do more like this! 😊

[@ljooni]

I think this video itself actually demonstrates the need for proper lighting to do this test really well, because as far as I know I have no colour vision issues but in this video I didn't really see the normal colour vision number on all plates but the colour deficient version, which was really interesting. My screen has yellow tint at all times, not just during the night, so it affects everything I watch.

[@kingzack5164]

This is unintentional ASMR thanks!

[@JGBarco]

8:54 - 9:10.... yes, 100000000% would love to see a video, or multiple videos deep-diving into all of that. Also, awesome job with this video. Incredibly well done and informative! Edit: thanks to this video i now know what MY particular deficiency is called... Deuteranopia

[@NORKonline]

This was super interesting! I've had the plates done numerous times, but I've never been given an explanation of how the scoring itself is done. I can't see full numbers in a lot of the plates (I can see parts of a number? Enough to make some sort of guess but nothing remotely close to the control plate) except for some of them where they're distinct and bold (like plates 14 & 15). For plates 18-21, I was able to see numbers in 18-20. Reminds me of being in the eye doc's office having to point out the number to my friend who accompanied me because I thought, "How come they can't see it, it's right there!" I see your bike gear as both yellow & blue at the same time but not green, if that makes sense. I try to avoid that color because it just breaks my brain to think about.

[@franfran6152]

Do you see yellow in one eye and blue iiib the other? Or how does that work?

[@justdexter9799]

Usually i used to be awake this late for football matches or netflix but here im waiting for Dr.Gill's Premiered video...GG from india🧐

[@phantomblade9167]

You are awesome !! I enjoy your videos. Oddly enough they calm me down.

[@kiwipics]

@DrJamesGill ... I'm a photographer when not working as a "mere" porter at my local hospital, and l've become an avid follower of your always interesting videos. I have recently taken up using a full spectrum converted infra red digital camera, and I have great fun experimenting with varying value NM filters, and the results are mind-blowing. PS: My Thyroid and Neuro examinations as a patient have never been as thoroughly as you perform them.

[@markmccallum475]

Imagine going your whole life and only realising you're colour blind when you're a grown adult. That would make you so mad, you'd be seeing red. You assume.

[@SwissTanuki]

Wow, you scared me for a second with the two last ones. Thanks

[@JennySussex]

I've just turned 56yrs old and only recently discovered that I have a mild green colour deficiency. I came to realise this as I am studying an online art course, and discovered in one of the assignments that I could not perceive a subtle shade of green that everyone was talking about! So this caused me to look into why I was getting the lesson "wrong". Thank you for this video it has helped me to understand why I've been struggling with identifying the green shades. Also one of the art excersise was to mix both red and green in varying degrees. These all just looked like warm reddy browns to me even though I knew I had put green in the mix!

[@alexandreroberts8830]

I was diagnosed as colourblind "in family" as I had relatives who had deficiencies. As a result, I've never actually been officially diagnosed and don't know which deficiency I have (though I definitely have one as experience proves). Unfortunately, I think my computer monitor is messing with the test conditions. While I was unable to perceive the numbers between 10 and 17 (as expected), I was also unable to detect any numbers in 2 to 5 and 18 to 25. I should probably have it done in a clinical setting to be sure. This was a wonderfully informative video! It was great to learn more about the ins and outs of the Ishihara Test. Thank you very much for making it!

[@ciskelewyllie683]

I've done multiple colour tests before because i sometimes think i see colours wrong, but i score perfect usually so i believe i just have trouble seeing different shades of the same colour apart. Also i have to say your voice is very relaxing to listen to, it triggers my ASMR if you've ever heard of that

[@DeclanBurger]

Video was awesome, haven't had a proper test since I was a kid and (just going by the video/also cheating to go back and really get a good look at the numbers) would say I have deuteranomaly. Great video thanks for sharing!

[@Starshelle]

Thank you for this video. It made me think of my dad who had a red and green color deficiency. Watching this video, I think he most likely had some form of deuteranomaly since I remember he could differentiate between some shades of green and red but certain types he could not. He would put that out to me when he was gardening that he couldn't really tell the red and green apart very well from certain plants. I wish he were alive today so I could ask him more about it.

[@DrJamesGill]

We had exactly the same thing with my grandad who raised me. Every time there is an issue with the colourblindness at home my gran will ALWAYS say “Well, it was your PA’s fault, he was colourblind!” She’ll say it every. Single. Time 😂

[@srbond]

Useful and relaxing!! Thank you.

[@OwO_Stormy]

I got recommended this on KZbin. So I decided to watch. I love your voice ❤ I listen to a bunch of asmr, nice soothing voice

[@DrJamesGill]

Hope it was useful

[@carlb89]

This was a great video. I’d never had it explained properly to me before. Strong green deficiency here 😮‍💨

[@brunobio-marino2352]

All 25 right! Thanks Dr Gill, I now feel like having superpowers!

[@DrJamesGill]

Lucky you, honestly I’m a little jealous 😊

[@iainsmith1088]

I have known I am colourblind since the age of about 8, but not until this video did I know I specifically have a mild green deficiency. Thank you Dr. Gill.

[@TresPro]

Ty for the video my gf had a good laugh with me at how she could perfectly see the numbers and I couldn't, I told her I knew I was deficient but this was a perfect example for her :)

[@Anonymuskid]

why is the vibe of this video so pleasently calm? i just came here because i have a hard time with red/green/orange/brown or blue/purple for example and now i'm fighting my sleepines, despite the inresting topic at hand.. huh, apparently i have deuteranopia and protanomaly. i guess i'll visit my doctor soon

[@Chazgugg]

Thanks for the vid, such a good explanation between colour blindness and colour deficiency. I now know I have a deuteranopia deficiency!!

[@endersmith162]

This guy has a voice for bedtime stories. :)

[@joshyboy-gy3ml]

This video is very insightful as I have deuteranopia and it was very interesting to know about it, I've never taken to fully research why. I would like to see a follow up with a reason why this colour vision occurs

[@DrJamesGill]

I’ll try and put together a genetics video soon

[@giovannas.zechmeister2833]

I think that our favorite doctor just accepted that he is a asmr king.

[@whoachillpleaserelax9483]

Man your voice is so soothing

[@owl104]

I am still utterly stunned how the last few plates can show up as numbers for people affected yet not for people with normal vision. I can’t see where and how the numbers could even be made out! Does how does that even work!

[@Vader-23]

Well done on Bear Grylls island James. Being colour “deficient “ myself, I find this all very interesting.

[@FoxVixen]

Well thanks to this video I found out I have Deuteranomaly. In games there are color deficency settings but I never knew what the names were, now I do, and now I can set the correct one. Thanks Doc!

[@DrJamesGill]

Glad you gained that! Have you found a benefit using those computer game settings?

[@FoxVixen]

@@DrJamesGill Yes! When in a fast moving scene the colours don't turn all in to one.

[@DrJamesGill]

That’s interesting. I’ll have to see if there is a colour blind option on Horizon Zero Dawn!

[@lylavati]

That was very interesting. I thought very black and white about that topic, but there are many greys (of course lol). Colourblind is not seeing no colour at all. The test was confusing. I had everything right, struggled a bit with plates 12 and 13, but got them right aswell, and saw a number 2 on plate 19. 😄

[@MMALineMover]

dropping the comment mentioned in the video!! great content would love more!!

[@DrJamesGill]

I’ll certainly look at it, I’ve not tackled any genetics videos, and it might dovetail with some more retina focused topics

[@vyseskies]

I loves this. I only got one plate wrong, so it seems I have normal color vision. However the plates 22-25, all the numbers on right were definitelly weaker colors than the ones on left.

[@hypo345]

I’m guessing that if you have scored high enough one wouldn’t even be presented with plates. I saw those plates as you did but does that mean there is a deficiency?

[@vanavern]

After knowing I have red-green deficiency for a few years, I finally get to know that it’s Deuteranomaly through this video. The doctor I saw didn’t even bother investigating further after knowing I couldn’t see the first few plates.

[@UnusedGamertag]

Thank you for helping me find the right word to describe my color deficiency

[@milanzsapka2104]

The best doctor ever

[@cameronwilliams3599]

Colorblindness is an interesting phenomena, because without relying on outside sources, there's no way, I would be able to tell if I was afflicted with it.

[@R3IGNMAK3R]

You are the David Attenborough of the medical world

[@karenleith6079]

Very interesting and brilliantly explained

[@tyr0n313]

Ah love the Matrix reference with the Oracle.

[@DrJamesGill]

I’m glad someone got it 😊

[@tyr0n313]

@@DrJamesGill I’m also happy to say I do not have any color deficiencies. But I must say I was worried when I couldn’t see any numbers on 18-21. Turns out that was normal. Well done!

[@Knoffles]

Really useful video. I finally know what colour deficiency I have!

[@flamingmuffin666]

I got a perfect score, so when I see your cycling helmet and jacket, they are the vague in between green and yellow fluorescent colour. Like a few shades more yellow than Granny Smith apples. If I was forced to say green or yellow, I’d say green, but they’re close. Helmet: 60 green / 40 yellow Jacket: 60 yellow / 40 green. Both have about the same shade/tone etc on fluorescent scale.

[@JohnDoe-yc2qt]

I got all of them correct except plate 19. I could actually make out a "2" on that plate, but it was incomplete. I could only see parts of the number. To explain it better, imagine if someone drew or sketched the number "2" in a specific font style on a piece a paper using a pencil, then they streaked an eraser through a couple parts of it. Parts of the "2" would now be missing, but you could still make out what it once was based on what remained. That's about how plate 19 looked to me. I could see parts of a 2's shape, but it wasn't all there.

[@ItsMeVolatility]

Same here!

[@DrNoxin]

Deuteranopia here as well. I love your yellow helmet and the grey plant pot.

[@DrJamesGill]

😂😂 YES!!!

[@DanielC01000100]

I definitely have deuteranomaly. I would love to see more videos of color vision and what causes color vision deficiencies

[@houndoomrulz]

You said to let you know in the comments if we'd be interested in more videos about color deficiency, and I certainly would be. I'm also curious about monochromacy, and cerebral achromatopsia (which is what I have), but I don't know if you'd ever cover those

[@Sam_Hyde_Apologist]

Your videos are so good!

[@DrJamesGill]

Thank you. I try to do what would have helped me when I was learning this originally

[@matthewwilliams3789]

Amazingly I have discovered from this video I have a deuteranomaly. 31 years old and never picked up on it until I did the test

[@Eva_lily15]

Top fella dr gill 👍🏻

[@natcolburn1090]

Would love to have a video going into more depth about this. I have issues seeing reds, and often mix them up with blacks and grays

[@olimarfunk]

Man, i always wondered why the charging light on my playstation controller looked green to me and NOBODY else! Thanks for helping me figure out that I have Deuteranomaly! (Ironic because green is my favorite color!)

[@DrJamesGill]

👍

[@gordonirvine726]

I like that they're called "plates" rather than pages.

[@DrJamesGill]

I think it relates to the age of the work - ie when these were first produced, photographs were mainly produced on plates

[@mattwroe4776]

I got refused certain flying jobs in the army due to this. Broke my geart wanted to do it since a young boy, stayed in the cadets did well at school, went to the fitness testing weekend and was offered a job in the REME as aircraft technician but was flight restricted, I know plenty of people don't make pilot jobs but I'd have liked to have tried I trained all my young life

[@DrJamesGill]

I only wanted medic in the RAF, but was barred due to asthma as a child. But was also told that my colour blindness would mean unable to fly too 😞

[@palomathereptilian]

Idk why but I'm really curious about colour perception and colour blindness in general, even if I'm not colourblind myself But one topic regarding colour perception that I already saw sometimes in the internet (generally in kinda shady websites), and I really wanted an actual doctor opinion about it is if is tetrachromacy a real thing among humans, and how someone can be tested for tetrachromacy if it's indeed real (besides genetic testing) 🤔 Thank you so much in advance for your answer, loved this video a lot 🥺💕

[@DrJamesGill]

I think colour and colour vision is a excellent way of looking at ourselves and also at others, to recognise we are all different and yet similar 😊

[@buffuniballer]

My optometrist gives me this test every year even though it's well documented that I'm a deuteranomaly. I'm not totally blind to green, but I do have a green deficiency. The amber and green traffic lights look similar to me. On the other hand, I find camouflage is less effective against how I see.

[@YBIagent]

Very good Dr.!! I am also deuteranomaly myself, but it is very mild. I initially thought it was tritanomaly until I also learned both my brother & grandad are also the same way as I.

[@VIVAlaCesc]

Ah damn, your cycling helmet and the jacket look the same to me as well, but in the test I saw all of the numbers, although it was a bit difficult for some.

[@tornadoreaper]

As a person who turns on colorblind color mode on the settings I cant wait how it affects so much!

[@allisonbowman162]

@Dr James Gill - consider a collaboration with @SRP ASMR. Two of my favorites!!

[@DrDinooshDeLivera]

Superb!

[@tokkiwon]

This is great. Thank you very much.

[@Cypppp]

Does your color deficiency affect your work in any way? For example, when checking an eye through an ophthalmoscope, are you able to see all the colors needed to make an accurate assessment? Just curious. Great video.

[@DrJamesGill]

As a GP, colourblindness doesn’t affect me, but I could see other areas - perhaps anaesthetics where they use a lot of colour coded drugs they may need increased caution

[@seanwillis8483]

I think air force pilots would fail. They are required to have excellent vision. Also anything were safety is an issue.

[@Cypppp]

@@DrJamesGill thank you for the response!

[@mattkevlarlarock5469]

sorry, just glanced at the visual and thought, good job handling greedo at the cantina. give my love to chewie.

[@Rebekahw]

Great video, are you going to do more videos about vision. If so, would you be able to cover Astigmatisms?

[@bbvetromile]

I’m a woman without color deficiency, but when I apply eye makeup I have to do it so close to my eyes that I use a bicycle mirror. I see each eye individually. That’s when I noticed that each eye sees color differently. One eye sees more red and the other sees more blue/green.

[@zachv465]

Tons of ASMR triggers in this video.

[@Chief-Solarize]

I remember taking this test at MEPS. The control page was at the back when I took it. It was the only page I saw. They still let me join the Airforce but my jobs were limited.

[@tygonmaster]

I could see every play perfectly fine except for plate 12, which looks fuzzy and kind of strange. My brain kept wanting to say either 37, 97 or 87 and it's kind of weird how it's like partially connected on the left side there. Every other one was incredibly easy. It is that specific one that is just strange to me for some reason. I think it's less a color issue and more the fact that I have a nystagmus, which I have managed to completely infuriate many an eye doctor with over the years I imagine. I also always fail every driving test at the DMV because of it. Truly a blessing. I truly hate it.

[@chuckoneill2023]

While I appreciate your care to differentiate between "seeing" and "perceiving", I take mild issue with it. "We" aren't just "wires in a box". My body is part of me, not just my vehicle. Edit: An interesting take on seeing/perceiving --- in the clip of you donning your riding gear, I perceived the gear as yellow, because you said yellow. Only after, when you said green, I paused on the image --- now I perceive the green.

[@DrJamesGill]

That is exactly how I see holly berries on a bush. I tend not to be able to “see” them with my “hardware” But when I have found them up close, my “software” let’s me perceive them a little more easily

[@seanwillis8483]

@@DrJamesGill I work with computers for a living. And this might not be as big a deal today. But I have found computer colors to not always be consistent. Especially with printers which still use a red, green, black, cyan color combination. Nowadays there probably isn't much difference. But I think there is still some difference

[@chuckoneill2023]

@@seanwillis8483 I work with printers all day --- the current full color standard is Cyan, Magenta, Yellow and Black (monitors use Red, Blue Green). I've never encountered the combination you mentioned. In any case, every printer has known limits --- the range of colors any given printer can accurately produce is called its "gamut", and any color which falls outside of that can only be approximated.

[@chadsmith1200]

Is there a Dr. Gill full head to toe physical exam video that lasts at least 20 minutes anywhere? The longer physical exams are my favorite.

[@PrideKnight80]

Ahhh Ishihara and Fanrsworth, two of my greatest nemesis’. Deutranomalia here. Farnsworth Munsell nearly sent me mad. First time I’ve ever heard another deutan talk about the grey/pink thing!!! So we’ll explained, will direct anyone curious about my condition to this video. Out of interest Dr. Gill, have you ever tried the enchroma brand deutan glasses? Could obviously be psycosomatic, but the spectrum filtering they do definitely made a difference to my green perception, particularly on greenery.