USYD Physiology

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@kakishisfriend1126 19 күн бұрын

Are we looking at the numbers or the inside where the lines all converge?

@andrewmaclean9810 Ай бұрын

holy shit im color blind

@anette0911 Ай бұрын

excellent explanation, good job!

@christ_is_coming_back9118 2 ай бұрын

It’s a horrible test. If I can see a color, should be good to go. Not a bunch of dots used to confused you

@usydphysiology1017 2 ай бұрын

Hi, @christ_is_coming_back9118, The dots are not intended to confuse you, but are used to identify deficits in colour vision. To a person with normal colour vision the dots appear to be slightly differnt colours and so, and so numbers or patterns can be identified by the viewer. In individuals with deficits in their colour vision, depending on the deficit, no difference in colour can be detected and so therefore the numbers or patterns cannot be seen. The various tests in these ishihara test booklets vary the exact colours of the dots on the different tests. When the viwer identifies what numbers or patterns they can see on each page, you end up with a complete diagnosis of the type of colour vision deficit you have, if any. So the dots are actually important, because they are discreet patches of colour that are meant to be compared to the surrounding patches of colour, thereby identifying what type of colour vision deficit you have. It is not the point to see if you can see in colour, even colour blind people think they see in colour. The aim is to compare the coloured dots with the surrounding coloured dots. I hope that helps.

@Pawanbohara-no6zo 4 ай бұрын

❤❤❤❤

@wafasaqib2685 4 ай бұрын

Thank you sir 🙏🏻

@just-someone99 6 ай бұрын

link to the article please

@Maxander2001 7 ай бұрын

A scientist who has time to think about sleeves, is not focused enough on science.

@jan-haviii_07 8 ай бұрын

Sir i don't have a body touch sensation while sleeping like if i say i don' have a single body parts which has sensation from my childhood i am very stressed from when i knewed about this that i don't have this in my hole family everyone has the body sensation but i don't havey family make fun of me when i say them this 😰🥺 the one word they always says me is "ur lazy that's why" pl pl pl helpp meee can i get my sensation back i won't get a single sense also while adter i sleep after sleeping i don't get sense like whthad happened with me 😢

@bethanysingsmrs849 10 ай бұрын

ok but if im looking at one line and the others are not focused isnt that just normal

@bethanysingsmrs849 10 ай бұрын

gen thought this was just my dyscalculia

@christineribone9351 11 ай бұрын

When the diagram was angled, imy vision was more vivid and clear

@eseebitonmo8790 11 ай бұрын

The lines keep moving around is that normal?

@princessnaima6529 11 ай бұрын

Good adviser ❤

@Nice-xc1yl Жыл бұрын

Fuvk color

@PiyaChoudhari Жыл бұрын

Wow this is really cool 😎 ! I liked it I saw part four I thought it was incomplete but here it is the next part to complete it ! Awesome thank you so much !

@m3rcur1u5 Жыл бұрын

i think you should really fix those sleeves, like that it invalidates the experiment i fear.

@minecraftmdursun Жыл бұрын

wth i saw 8 on 2:02

@OldiesInStereo 4 ай бұрын

thats normal. colourblind will see 3

@Ce3nt307 Жыл бұрын

This is a legendry explanation

@mmbudny Жыл бұрын

I was diagnosed with astigmatism a long time ago, and the diagnosis has always been confirmed. I was unable to see any blurriness in the lines, but the numbers at the ends of the line were blurry when the paper was rotated.

@anonymoussoul3256 Жыл бұрын

Plz tell me... In my new glasses axis is differ by -6 degree than real prescription.. .. Willl it affect

@SadEyes1412 Жыл бұрын

At 90 degrees it was sharpest

@shamimahmed5466 Жыл бұрын

I am colour blind😭😭😭

@robotpanda77 Жыл бұрын

Your sleeves are too long for you should get measured for a proper fitting shirt.

@glockford Жыл бұрын

I've takes this test & it said I had both mild deutan & tritan. *I was born with deutan and acquired tritan later in life resulting from an automobile accident from a BTI. So, I'm both B/Y and R/G CVD. {Wow!!!}

@GirlSmotheredToDeath Жыл бұрын

4:08😁

@okthen4912 Жыл бұрын

Is there supposed to be any shapes at 1:45 ? Is it just me or is there nothing there

@MacXpert74 4 ай бұрын

There's a X in the right corner.

@badrikokaia4603 Жыл бұрын

I have -6 in my left eye and -0,20 in my right one. I did this test and with left eye i didnt see literary anything. And with my right eyes i saw some Red lines. I dont know how but do i have astigmatism in my right eye?

@kittyxoxo2024 Жыл бұрын

My doctor said I have asygnatysm but I see all lines clearly

@StevieFQ Жыл бұрын

This is a test for parkinsons. I have bad news, either the person holding the sign or the person holding the camera has it.

@janakubin2547 Жыл бұрын

Hahaha 😮😮😮

@storiedivitavera1518 Жыл бұрын

I notice a wave in every line some times Maybe i have some times i find blurred the sides sometimes one of another But it doesn't affect me , I don't need anything if i can see , i can see details maybe , not very well some times , in this video , but i can know what it is in that , it is not a big deal

@irvingchies1626 Жыл бұрын

There's an even easier method, use a screen with a black background and a white square or dot in the middle, a shadow of the white figure will appear on screen and you'll be able to correct it way easier that way

@rickau Жыл бұрын

My life using dark mode on almost every single website in existence. Every test I've had post cataract surgery is black dots or whatever on a white background and they aren't nearly as pronounced as when it's a black background with white anything (text, cursor, blank space, etc). Almost every website that has a dark mode, I use dark mode. And it's obvious AF that I astigmatism going on post surgery. It was never visible before, only after.

@skinnygunsmith7565 Жыл бұрын

I was told I have a pretty severe astigmatism by an optometrist as a child, though I never knew what the symptoms were. Now in my 20s, I've realised I don't have any of the related symptoms

@ninjamcstrange Жыл бұрын

do i need to take my glasses off for this?

@dave0smeg Жыл бұрын

What does it mean if all of them are blurry?

@ashy-chan Жыл бұрын

Exactly

@R3cce Жыл бұрын

@@ashy-chanThen you either have myopia or hyperopia

@raynac224 Жыл бұрын

I see alot of people replying to this to mention what changes they saw. I was wondering if the main channel could confirm whether this test should actually work through a video recording like this?

@usydphysiology1017 Жыл бұрын

Hi raynac224, you are quite right, it is not the purpose of this video to actually test astigmatism. This video was made to wallk the students through a series of activities that they would be doing in a class looking at various tests of the visual system. The astigmatism test is just one of the tests they would be looking at. You can sort of see the effect when looking at the image in the video, but ideally there should be nothing between your eye and the test diagram you are looking at.

@CrystalNibarger Жыл бұрын

The lines were fine I mean yes at some points they got fuzzy but the numbers are what I was looking at some numbers were a lot sharper than others whereas some numbers were more fuzzier than others but I already know I'm nearsighted so as I mentioned in the last video mine is -1.25

@markabellar4152 Жыл бұрын

woah.im scared a while ago cause i cant understand one plate that ive looked.but thanks to this.now i understand why i cant see any number on that what you called hidden number plate.hahaha.testing my self for korea.cause thats the number 1 test if you are eligible or not