Stefos interesting point. However from a simple bio electric stand point I’d suggest it is a reasonable concept until we have a concrete alternative theory of our interactions with the outside world.
I learned this from a magic book when I was a kid. Years later when I was a science teacher, I had my class do it. It turned out that none of them knew about it at it totally blew their minds.
I've worked in ophthalmology (both clinical and research) for several years and I usually hate to watch anything about ophthalmology because either I feel like I'm constantly picking out informational errors or it's too similar to what occurs in clinic so it makes me feel like I'm working. This video is comprehensive and accurate on the topic, but still light enough to be interesting. You have somehow broken the spell with this video Dr. Gill. Bravo and thank you!
Now THAT is a TERRIFIC thing to hear!! I am ALWAYS concerned when a specialist sees me teach or views any of the content, so that is a brilliant thing to hear. Genuine thanks for that 😊
Lol With this I found my left eye has a huge blind spot!! I had a problem with my vision randomly being unable to see clearly at times. I had my eyes checked and asked alot of eye doctors. They all said other then needing my glasses, my eyes where fine. Gave up on it. But this video help me understand it was my blindspot! With this knowledge, i was able to recreat the events where i lost the means to clearly read and see. It was when playing or watching or typing on tv/phone/pc. No wonder i kept having typos in my texts. I was holding the phone in my left eye's blindspot. Thank you for this. At last a life long problem solved. 🤗👍 Now I understand my eye's range of view.
Fascinating! I tried that test using my phone, it's surprising how big that blind spot is. Not being in any way qualified with regards to medicine, it's great that you managed to demonstrate this skill so clearly that it didn't take more than one try to make it work. Excellent work on the video - even for those of us not watching as medical students, it's really interesting to look at the diagrams and hear the explanations. Thanks for producing this!
On a side note, something I noticed just now: When you show the Ishihara Charts, I think the labelling on the left might be unintentionally misleading. With the control plate, it says on the left that "this shows 12", which is correct, and the next test plate that says 6 also says "this shows 6", so I think a viewer would assume that you are displaying the correct answer on the left in the video. However, the next two have written on the left what an R/G colourblind person would see (i.e. what you're seeing), but are presented in the same way as the correct answers before - I initially thought I was reading the plates wrong myself and went to check the linked document. Then, in the last one, it says on the left that you see nothing but that the plate "shows" 7, i.e. reinforcing the concept that the "shows X" on the left are displaying the correct answers.
This was an AWESOME at home test Dr. Gill! Thank you for actually showing us a method that made sense and was easy to do. Also, nice to see a fellow red-green color deficiency plagued person. I always hate when they bring out the Ishihara tests! Great video once again!
This is crazy. I found my blind spot in seconds. It's amazing how our brains can fill in that area with what I thinks should but its just empty space. Whoa.
Tried locating my blind spot on desktop PC, no luck. Tried it on my mobile phone and found it instantly! Simple but effective, thank you for the informative video Dr Gill.
Thanks for everything again, Doc, I’ve been trying to decide what my interests for the future may be for a while now and you’re one of the things that makes me come back to the medical option. Also, the ASMR is just the cherry on the cake!
Great video, Dr. Gill--informative and straightforward, so that even non-medical folks like me can understand and enjoy. A couple corrections to the Ishihara Chart examples: at 2:54, the number shown is an 8, not a 3; and at 3:02, it's a 3, not a 5.
That is part of the point. As someone who is red green colour blind I ACTUALLY see a 3 there. Different charts are designed to appear differently depending on what your eye is able to perceive
That's interesting. It's like the whole Yanny/Laurel thing, but for the eyes instead.
4 года назад+4
At 2:55 you can see a merge between the 8/3. The base of the number (3) pulls towards violet, while the "added" part to make an 8 from a 3 is more orange-ish. Given this plate at an examination I would say I see both numbers. As for 3:03, I see a 3. The upper half is a different shade of green than the bottom half. Similarly as with 3/8, 3 and 5 have s common part (the bottom half). I might have some sort of color vision defect (my father is red/green colorblind) because I can't for the life of me find any part of the upper half of the 5.
FarrelFZeta yup. I know the red stuff goes INSIDE the patient. If it’s on the outside. There is a problem. From a colour perspective you don’t need more than that!!
Wow this was so interesting! I watch a lot of asmr optical roleplays and whenever they do the whole blind spot i never really had a clue what they were talking about! I tried your demonstration, moved my phone backwards and forwards without any luck then suddenly it straight up vanished! Was such a good yet simple way of helping people understand how to find their blind spot :)
😊 I’m a REAL stickler to make sure the students can examine a patient WITHOUT resorting to technology. Yes we can just do a retinal photograph, but being able to use a ophthalmoscope is STILL VITAL
3:02 That shows a 3, actually. I went ahead and googled this Ishihara Chart and had a look at all 38. Also did the test available online just to be sure. The 3 and 5 ones seem to have the same colors, but I can clearly distinguish between the two. To my eyes, the 5 is very clearly a 5 and 3, very clearly a 3. I decided to make this comment cuz seeing the 3 and then "shows 5" at the side made me quite confused. Either I went 27 years without knowing I'm colorblind and that part of the video is wrong, and I'm sure I'm not colorblind. Just thought I'd point that out cuz it's kinda concerning to be confused about this on a medical video whereas I never had problems with seeing certain colors in all my life.
@@layerp For real - I was like, "Oh god, did I just discover I'm colorblind because of a RUclips video?!" Stopped and googled the Ishihara Test, tested myself, and was relieved to learn they're just labeled wrong in the video. 😅
We have done a full video on using the Ichihara charts if you fancy a look Understanding the Colour Blind Test - Including Self Red / Green Colour Deficiency Test - Dr Gill ruclips.net/video/sUM8-qL1iCQ/видео.html
I remember taking this test when i was young, with the "plus sign and housefly" diagram. Great vid as always Dr Gill! Edit: whoa you're color blind, im kinda surprised too
No, I’ve never really had an issue (apart from accidentally painting three different walls three different colours) My take is I can’t see in ultra violent either (like a chicken) and I’m happy with the vision I have, so I’m not going to go down a road which might make me not like my base line abilities If that makes any sense? Perhaps another way of viewing it is that everyone else seems to see 100,000 shades of green, but I only see 1000. But the grass still looks green to me 😊
I was watching this on a 65 inch TV, clicked on this by chance. Literally all I did was close one eye while looking at + and the circle disappeared. Perfect setting by chance.
@@DrJamesGill omg! came back to this video for another lesson and I forgot to answer you 😓 I teach 7, 8, and 9 grade biology in Denmark and I use this video when we are examining eyes and how they work 😄
That was wild I even put the tip of my finger in front of where I was supposed to see the big dot and it vanished. I could even feel crackings like when you have cramps, around the blind spot as you move ur finger. So I guess that's how we perceive light.
At 3:00, I see the number "8" but I'm adding in a "ε" section on the left side of a 3 shape that is definitely more "orange-y" than the red of the 3. At 3:02 I'm definitely seeing a clear 3, not a 5 at all.
Great video , if you wear glasses should you use them during this test? Also should the patient you are testing keep on their glasses? Aside from this , during the field testing should a patient keep on their glasses?
this was fun!!! I found my blind spot right away, and if you do it too many times in a row, you will begin to get a slight head ache! I'm elderly, so, I am due for cataract surgery in about a year. The fun thing is I was told I could pick the color I wanted. I'm leaning toward two different colors, and having fun blaming the surgeon. I'm so NOT staying with brown and ready to match my husband's handsome blue eyes. BUT, this is going to sound like a dumb question, how do you test for say the other eye? Do you just close the left eye? Or does it have to be a dot and cross and I need to hold the iPad upside down?
Oh. My. Shit. Do forgive my foul language, but I am genuinely shocked at this new knowledge! Such a simple video but it was so informative, news reporters should strive for this.
It's a very cool trick. I'm currently a student Optician and just wanted to say that you explained this sensation very well! A lot easier than reading through Jalie and Tunnecliffe!
Dave Viner thank you! I appreciate that. I think it went over well with the students in the lecture, but I’d handed out loads of A4 paper to do it with there 😊
"Which will hopefully improve your clinical skill, which is the entire purpose of these videos"....Me: *at 2am in bed watching these for no clinical reason whatsoever* oh ..😂
"we are brains living in a black box, isolated in all ways from the outside world."
It's 11pm. I didn't need this information right now.
lmao SO true! I thought the same thing when he said that, I was like omg ..never thought of it like that. Smh.
Makes you think doesn’t it!
No...we are NOT simply brains inside a black box...that is a materialistic world view which Quantum Physics has put into serious doubt
Stefos interesting point. However from a simple bio electric stand point I’d suggest it is a reasonable concept until we have a concrete alternative theory of our interactions with the outside world.
Stefos I’m not sure how Significant quantum entanglement is likely to be too straight for biology. However physics is very much not my field
Holy shit, that blind spot test worked. I’ve never experienced that before. I thought you made the spot disappear in the edit. Trippy.
I learned this from a magic book when I was a kid. Years later when I was a science teacher, I had my class do it. It turned out that none of them knew about it at it totally blew their minds.
Nope, no tricks here :)
5:00 test itself
I lost my mind, I actually found my blind spot. Never had a test like this so seeing the spot just disappear was so cool.
Well it looks like if I can find them, I need to put more things in the videos of people to be able to try at home
Yo same I lost my shit no doctor has performed a blind spot test on me thst I can remember. This was cool
Dr. Gill could narrate a phonebook, and it would be interesting.
And now, The Yellow Pages... pages 1
@@DrJamesGill Worth it!
And relaxing
I've worked in ophthalmology (both clinical and research) for several years and I usually hate to watch anything about ophthalmology because either I feel like I'm constantly picking out informational errors or it's too similar to what occurs in clinic so it makes me feel like I'm working. This video is comprehensive and accurate on the topic, but still light enough to be interesting. You have somehow broken the spell with this video Dr. Gill. Bravo and thank you!
Now THAT is a TERRIFIC thing to hear!! I am ALWAYS concerned when a specialist sees me teach or views any of the content, so that is a brilliant thing to hear.
Genuine thanks for that 😊
@@DrJamesGill You are most welcome. 😊
Lol With this I found my left eye has a huge blind spot!! I had a problem with my vision randomly being unable to see clearly at times. I had my eyes checked and asked alot of eye doctors. They all said other then needing my glasses, my eyes where fine. Gave up on it. But this video help me understand it was my blindspot! With this knowledge, i was able to recreat the events where i lost the means to clearly read and see. It was when playing or watching or typing on tv/phone/pc. No wonder i kept having typos in my texts. I was holding the phone in my left eye's blindspot. Thank you for this. At last a life long problem solved. 🤗👍 Now I understand my eye's range of view.
So weird, same here! Tried to find it on the right, still can't. But on the left, the dot easily pops in and out of view.
"hello my name is Dr Gill" 💕
Tio Jhon get a haircut
Not a student here, but I've been "looking" for my blind spot for a while and finally found it. Thanks!
Happy to help!
Fascinating! I tried that test using my phone, it's surprising how big that blind spot is. Not being in any way qualified with regards to medicine, it's great that you managed to demonstrate this skill so clearly that it didn't take more than one try to make it work.
Excellent work on the video - even for those of us not watching as medical students, it's really interesting to look at the diagrams and hear the explanations. Thanks for producing this!
On a side note, something I noticed just now:
When you show the Ishihara Charts, I think the labelling on the left might be unintentionally misleading. With the control plate, it says on the left that "this shows 12", which is correct, and the next test plate that says 6 also says "this shows 6", so I think a viewer would assume that you are displaying the correct answer on the left in the video.
However, the next two have written on the left what an R/G colourblind person would see (i.e. what you're seeing), but are presented in the same way as the correct answers before - I initially thought I was reading the plates wrong myself and went to check the linked document. Then, in the last one, it says on the left that you see nothing but that the plate "shows" 7, i.e. reinforcing the concept that the "shows X" on the left are displaying the correct answers.
Yes, this is the problem my only considered after the video had been posted 😳
@@DrJamesGill It's fine, just a minor mishap! Keep up your excellent work in making these videos :D
Oh thank goodness I thought I was the only one with a huge ass blind spot! we can be blind best friends!
The blind spot ‘test’ is very cool, eyes are amazing 😄👀
This was an AWESOME at home test Dr. Gill! Thank you for actually showing us a method that made sense and was easy to do.
Also, nice to see a fellow red-green color deficiency plagued person. I always hate when they bring out the Ishihara tests! Great video once again!
All the chaps in my family are quite colour blind
This is crazy. I found my blind spot in seconds. It's amazing how our brains can fill in that area with what I thinks should but its just empty space. Whoa.
I was flabbergasted to find my blind spot. Im gonna suprise my brother and my parents with this. Thank you!
Take a screenshot and print it off on a ‘bitapaper’ 😁
Awesome vid!
"bitapaper" for the win! :) thanks for your videos, Dr.! :)
I simply love your voice. It's so calming and pleasant to listen to!
👏
Not a medical student, but I do love your stuff! I have learned SO much!! Thanks for the work and sharing!!
That’s great to hear 😊
Tried locating my blind spot on desktop PC, no luck. Tried it on my mobile phone and found it instantly! Simple but effective, thank you for the informative video Dr Gill.
Glad it worked. It’s such a cool little test!
Vocals: 10/10 (helped me sleep)
Sandwich breath 0/10
Navy suit for war 0/10
Red in the face 0/10
Chevrolet, Zebra, Honesty 0/10
Lovely and floppy 0/10
AMAZING ! - BUT WOW , WHAT A VOICE !
👏
Thanks for everything again, Doc, I’ve been trying to decide what my interests for the future may be for a while now and you’re one of the things that makes me come back to the medical option. Also, the ASMR is just the cherry on the cake!
Medicine is brilliant. Apart from the days it isn’t. See if you can find a clinic to sit in on
Imagine showing up to medical school and Dr Gill is your teacher.
3:04 shows a "3" for me, not a "5" as stated in the clip?
Same here
I suppose it states what mr Gill sees
Jeroen Crab Yikes, you’re colorblind
and the one at 2:57 is an 8, not a 3
Different people, will see different numbers, depending on how good their colour vision is
Great video, Dr. Gill--informative and straightforward, so that even non-medical folks like me can understand and enjoy.
A couple corrections to the Ishihara Chart examples: at 2:54, the number shown is an 8, not a 3; and at 3:02, it's a 3, not a 5.
That is part of the point. As someone who is red green colour blind I ACTUALLY see a 3 there.
Different charts are designed to appear differently depending on what your eye is able to perceive
Worked perfectly the first time! Great video.
🤔
That was wild! I found my blind spot! I am incredibly myopic so I can’t see much but that “dot trick” worked!!! Dr. Gill, you’re my favorite!!!
This is very useful ❤️
Thank you.
Wow wow wow
Hats off to Dr Gill
I have never experienced what a blind spot likes until this super amazing one.
It’s an amazing piece of biology isn’t it!!
You make learning actually fun and not boring, thank you
How did your exam go in the end?
Ah, this takes me back to my class on sensation and perception. I enjoyed it as it refreshed me on this matter, and it’s all around just fun to do.
At 2:55 it's "8" not "3". At 3:03 it's "3" not "5".
The test is also looking at what is seen, I will see different numbers on some plates, and those numbers give info about my colour blindness
That's interesting. It's like the whole Yanny/Laurel thing, but for the eyes instead.
At 2:55 you can see a merge between the 8/3. The base of the number (3) pulls towards violet, while the "added" part to make an 8 from a 3 is more orange-ish. Given this plate at an examination I would say I see both numbers.
As for 3:03, I see a 3. The upper half is a different shade of green than the bottom half. Similarly as with 3/8, 3 and 5 have s common part (the bottom half). I might have some sort of color vision defect (my father is red/green colorblind) because I can't for the life of me find any part of the upper half of the 5.
@@DrJamesGill Wow, colour blind people in UK are allowed to be a medical student?
FarrelFZeta yup. I know the red stuff goes INSIDE the patient. If it’s on the outside. There is a problem.
From a colour perspective you don’t need more than that!!
Wow this was so interesting! I watch a lot of asmr optical roleplays and whenever they do the whole blind spot i never really had a clue what they were talking about!
I tried your demonstration, moved my phone backwards and forwards without any luck then suddenly it straight up vanished! Was such a good yet simple way of helping people understand how to find their blind spot :)
Woah, my blind spot is wayyy larger than I thought it would be.
Jaclyn Rachelle same!
Jaclyn Rachelle mine too... this is kinda reassuring I guees
Same
Legally blind
This was so educational and cool that we could try it for ourselves! Can't wait for the video next week!
Uploading now
This is what i tried doing after seeing all ASMR videos, but, never could do it. Dr. James ❤️
Glad it worked !
Holy shit that blind spot thing worked, that shook me! 😂
That’s crazy! Great work Dr. Gill
I’m not sure what goes on at medical school in the modern era but I did that blind spot test at middle school in the ‘70s. Old ways still have value.
😊 I’m a REAL stickler to make sure the students can examine a patient WITHOUT resorting to technology.
Yes we can just do a retinal photograph, but being able to use a ophthalmoscope is STILL VITAL
Holy cow that was weird! I’ve never had a blind spot exam in my entire life and that was so interesting!
Dude that girl is so lucky. How is she even looking at him like that??? I would cry
Wow, Doc, it actually worked! I've never found my blind spot before.
👍
3:02 That shows a 3, actually. I went ahead and googled this Ishihara Chart and had a look at all 38. Also did the test available online just to be sure. The 3 and 5 ones seem to have the same colors, but I can clearly distinguish between the two. To my eyes, the 5 is very clearly a 5 and 3, very clearly a 3. I decided to make this comment cuz seeing the 3 and then "shows 5" at the side made me quite confused. Either I went 27 years without knowing I'm colorblind and that part of the video is wrong, and I'm sure I'm not colorblind. Just thought I'd point that out cuz it's kinda concerning to be confused about this on a medical video whereas I never had problems with seeing certain colors in all my life.
"Shows 3" is 8, and "Shows 5" is 3.
@@andyjohnson4907thank you, I was getting worried here
Given I’m colourblind. It’s likely I mad the mistake, putting down what I could see
I’ll be doing a video on the ischihara charts 😊
@@layerp For real - I was like, "Oh god, did I just discover I'm colorblind because of a RUclips video?!" Stopped and googled the Ishihara Test, tested myself, and was relieved to learn they're just labeled wrong in the video. 😅
We have done a full video on using the Ichihara charts if you fancy a look
Understanding the Colour Blind Test - Including Self Red / Green Colour Deficiency Test - Dr Gill
ruclips.net/video/sUM8-qL1iCQ/видео.html
That cross and dot thing is amazing. Tested it on my left eye. Staring at the cross and giving the phone and noticing the dot disappear
I’m freaking out!! It worked!!
I absolutely dont know why i am watching this... But thank you anyway :) greetings from Germany
It worked. Gotta love a bit of Dr Gill! X
👍
WHOA on my computer screen I didn't even have to move it I have a huge blindspot right in the middle of my eye this is so awesome !
Interesting, informative and pleasant to listen to.
EDIT: my blind spot is significant!
Try it with a friend and try to compare with theirs? If in double, have a chat to an optician 😊
"I'm relatively garrulous"
Well, I learned a new word today.
😁
I tested it out, and I can safely say, that was weird, but so cool at the same time.
I feel honored to share the same color blindness with this man
I remember taking this test when i was young, with the "plus sign and housefly" diagram. Great vid as always Dr Gill!
Edit: whoa you're color blind, im kinda surprised too
actually not unusual in chaps, as it is an X-linked genetic defect, i.e. girls normally have a backup copy of the gene we don't
@@DrJamesGill did you try enchroma glasses?
No, I’ve never really had an issue (apart from accidentally painting three different walls three different colours)
My take is I can’t see in ultra violent either (like a chicken) and I’m happy with the vision I have, so I’m not going to go down a road which might make me not like my base line abilities
If that makes any sense?
Perhaps another way of viewing it is that everyone else seems to see 100,000 shades of green, but I only see 1000. But the grass still looks green to me 😊
No entiendo esto, pero me entretiene mucho, Saludos desde México Dr. Gill!
Thanks Doc, greetings from Uruguay
I was watching this on a 65 inch TV, clicked on this by chance. Literally all I did was close one eye while looking at + and the circle disappeared. Perfect setting by chance.
That’s really good. I’ll see if I can get it to work with the projector at uni
OMG this worked so well! I'm not studying medicine, but this was incredibly interesting!
Ahh! That's really weird! Luckily the reassuring dulcet tone of Doctor Gill had me calm and relaxed :)
WOOOW THAT WAS SO COOL!! Thank u, that was so interesting 😂🥰
You’re welcome 😊
You the man dr gill!!🙏👌💯
My students loved it!
Where were you using it? That’s great to hear 😊
@@DrJamesGill omg! came back to this video for another lesson and I forgot to answer you 😓
I teach 7, 8, and 9 grade biology in Denmark and I use this video when we are examining eyes and how they work 😄
7:10 He meant "pitapaypa."
nice vid dr. gillson
Really enjoy these vids. Very relaxing and very informative.
Loved the blind spot test. Great!
Just realized that im colorblind. Thanks for the interesting Information. :)
after focusing on the + sign and losing the dot, i had trouble defocusing on the + sign, my mind was want to follow it. but made it work
Found my blind spot in seconds, that was weird but fun, Thanks for showing us this
That’s really interesting, I’m also red green color blind as well, I saw 12 clear as day, but I saw no other numbers, just a mash of different colors!
Tell me about it, I’ve always had real problems with the ischihara plates. We found a few students who DIDNT know they were colour blind 😳
What a great video and introduction!
I found my blindspot...I measure it and it look like there is a "D" in triangle shape, long in H but short at poles, that was so mindblowing
I’m a little worried my blind spot might be massive lmao
If in doubt get it checked. A lot of opticians can do it 😊
"I can see it"
You mean can't surely?
Lovely and floppy
@@DrJamesGill it's from another video assessing blind spot, with dr Berry.
However, blind spot is a fascinating subject!
"Can I call you Aiden? ☺️"
@@HaydnG266 that's fine
love your videos Dr. Gill 🖤
Thank you ! 😊
When I tried that blind spot test just now it blew my mind! I could see the dot disappear In flashes!
It’s a great way of seeing how your brain works!
Wait I see “8” not 3 and “3” not 5 in the colour chart test??
12, 6, 8, 3, 7 is the sequence I see?!
gavrussell That means you’re legally colorblind so won’t be able to fly airplanes
B. Jr. ... or it means Dr Gill is and couldn’t tell what the right numbers were to put in his video.. 😂
gavrussell No, trust me I’m a medical professional, you’re colorblind with the AIDS.
@@deathmetalpotato You can't fly jets if you're colourblind
Mr Blue Sky That’s what I said, what are you, blind
I can’t find blind or G.
Thanks doc
The dot and cross really work! It just disappears, and reappears millimetres away! I took a screenshot to show everybody "a magic trick".
Absolutely brilliantly thank you so much
Wow, my blind spot is much bigger than I would have guessed. The brain really is amazing.
Oh yes!
So cool! Great job Dr. Gill
It’s a fun bit of science 😊
That was wild I even put the tip of my finger in front of where I was supposed to see the big dot and it vanished. I could even feel crackings like when you have cramps, around the blind spot as you move ur finger. So I guess that's how we perceive light.
Love how we’re all here for his voice
I've always watched people doing this but I'm amazed by how the circle suddenly disappears
Quite a shock the first time it disappears isn’t it!
At 3:00, I see the number "8" but I'm adding in a "ε" section on the left side of a 3 shape that is definitely more "orange-y" than the red of the 3. At 3:02 I'm definitely seeing a clear 3, not a 5 at all.
I feel so much better knowing that the great Dr. Gill is also colour blind! 😁😁😁
Basically the stuff that leaks out of a broke patient is red. That’s all I really need to know 😊
@@DrJamesGill I love this haha and I love your work! Thanks for making my night and helping me sleep while also learning routine checkup procedures!
Great video , if you wear glasses should you use them during this test? Also should the patient you are testing keep on their glasses? Aside from this , during the field testing should a patient keep on their glasses?
Remove the glasses in both
@@DrJamesGill Thanks much
this was fun!!! I found my blind spot right away, and if you do it too many times in a row, you will begin to get a slight head ache! I'm elderly, so, I am due for cataract surgery in about a year. The fun thing is I was told I could pick the color I wanted. I'm leaning toward two different colors, and having fun blaming the surgeon. I'm so NOT staying with brown and ready to match my husband's handsome blue eyes. BUT, this is going to sound like a dumb question, how do you test for say the other eye? Do you just close the left eye? Or does it have to be a dot and cross and I need to hold the iPad upside down?
I am mesmerized
This was amazing!
This is the first video I've seen featuring Dr Gill without a putabitapaper comment
That was crazy! The dot just vanished when I looked at that cross.
:)
Oh. My. Shit.
Do forgive my foul language, but I am genuinely shocked at this new knowledge! Such a simple video but it was so informative, news reporters should strive for this.
Excellent. Thank you
It’s a cool trick isn’t it!
It's a very cool trick. I'm currently a student Optician and just wanted to say that you explained this sensation very well! A lot easier than reading through Jalie and Tunnecliffe!
Dave Viner thank you! I appreciate that. I think it went over well with the students in the lecture, but I’d handed out loads of A4 paper to do it with there 😊
@@DrJamesGill You're welcome. It worked very well on my phone screen I can only assume it worked well in your class too!
Tried it and that is some trippy stuf. Enlightening though.
Thank you 💖
it’s a cool test isn’t it!!
Thank you so much !!!
"Which will hopefully improve your clinical skill, which is the entire purpose of these videos"....Me: *at 2am in bed watching these for no clinical reason whatsoever* oh ..😂
I was gonna watch this video but I can’t with the way his voice sounds 😂
Based on this test, I might be legally blind.
This really works
Nice video.
Thanks for the visit