Macro Pupil Constricting in Slow Motion - The Slow Mo Guys

  • čas přidán 15. 01. 2019
  • British people are not known for great eye contact, but Gav steps up his game by looking deeply into Dan's eyes... From about 2 millimeters away to find out how quickly a pupil constricts.
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    The Speed of Pupil Dilation - The Slow Mo Guys
    Filmed at 1000fps and 500fps with a Phantom Flex 4K
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Komentáře • 5 051

  • Romance
    Romance Před 3 hodinami

    3:06 little did buddy know that he railed come cocaine before this video.

  • RyanairGod Flys
    RyanairGod Flys Před 4 hodinami +1


  • Mohd Basri
    Mohd Basri Před 4 hodinami

    The eye wiggles.... That is the real optical image stabilization

  • Umer Khan
    Umer Khan Před 5 hodinami

    No doubt ALLAH is the best creator

  • #proderis
    #proderis Před 6 hodinami

    the iris must absorb so much light, because it stays completely black when shining a light directly on it

  • Sabrina Wyman
    Sabrina Wyman Před 12 hodinami +1

    Poke your eye:
    My eyes water
    injure your eye in any way:
    My eyes water

    Film your eye in slow motion:
    I watch in fascination

  • mahadisal ahadani
    mahadisal ahadani Před 12 hodinami

    I dunno but I had fun watching you guys filming your eyes, well I am always curious and fascinating about it.

  • Mr LloydVal
    Mr LloydVal Před 15 hodinami +2

    3:34 lool

  • Jonas Unitech
    Jonas Unitech Před 16 hodinami

    this is amazing video

  • Game Wit Me 9544
    Game Wit Me 9544 Před 20 hodinami

    Myopia -3 anyone???

  • KT Marx
    KT Marx Před 21 hodinou

    Now do it drunk

  • Julian McClintock
    Julian McClintock Před 21 hodinou

    Now do this with a cat please kind sir's

  • Jesus Gil
    Jesus Gil Před dnem +1

    Can we get a video on FLEAS? People believe they hop with their toes, but I say they hop with their knees.

  • Drawn Out Beats
    Drawn Out Beats Před dnem


  • Wesley Morrison
    Wesley Morrison Před dnem

    3:05 gave me nightmares

  • sputnic
    sputnic Před dnem

    That´s amazing . But your soul is not behind your eyes , it´s in the stomach diaphragm low lung area , then you have the spirit !!!!

  • Reuben Mech
    Reuben Mech Před dnem


  • alhakim bp
    alhakim bp Před dnem


  • GMP Gaming
    GMP Gaming Před dnem +2

    Human eye is arguably the most well engineered object in the universe.

    • GMP Gaming
      GMP Gaming Před 20 hodinami +1

      @skeptic moderate ok eyes in general.

    • skeptic moderate
      skeptic moderate Před 21 hodinou

      I mean there are plenty of better eyes in the animal kingdom.

  • The Random Raddish
    The Random Raddish Před dnem

    You're welcome

  • Aesthetic Team
    Aesthetic Team Před 2 dny


  • Cameron Wright
    Cameron Wright Před 2 dny

    When I shine something in my eye the donut is green and yellow,

  • Cosmic
    Cosmic Před 3 dny

    gross. i want to cut off his eyelids!

    KC LEACH Před 3 dny


  • get_vtec 5
    get_vtec 5 Před 3 dny

    3:10 name of the music?

  • Red Eye
    Red Eye Před 4 dny

    And you can buy a similar one that shots

  • Red Eye
    Red Eye Před 4 dny

    I know where you got that he has a channel

  • Abbas Ahmed
    Abbas Ahmed Před 4 dny

    Allah-hu-akbar (God is greatest)

  • tyler duncan
    tyler duncan Před 4 dny

    Is this the Gavin from rooster teeth?

  • Abdul
    Abdul Před 5 dny

    The was looking like sunflower

  • Farhad The Gamer
    Farhad The Gamer Před 5 dny

    6:09 I thought I was the only one who could do that......

  • T_r_i_g_g_e_r_e_d _C_h_i_k_u_

    *Thenks for thes😊*

  • -MTG- Blue Gamer
    -MTG- Blue Gamer Před 5 dny

    Thats Prettiest thing i ve ever seen

  • Panther
    Panther Před 5 dny


  • Giuzu
    Giuzu Před 5 dny +2

    I really think the shades of tifferent colors are fascinating.
    This was the most beautiful vid I’ve ever seen on youtube, hands down.
    Mesmerizing af

  • Dark Punisher
    Dark Punisher Před 6 dny +1

    I think the iris is slimy to stabilize our vision, like a gimbal

  • SamDDBS
    SamDDBS Před 6 dny

    6:15 hey i could do that too

  • Night Bleeding
    Night Bleeding Před 6 dny

    7:16 this ''jelly'' thing is the autofocus of the eye 😁😁😁

  • Mahin Patel
    Mahin Patel Před 6 dny +3

    His eyes got OIS technology 😂😂😆😆

  • stevric Mascarenhas
    stevric Mascarenhas Před 6 dny

    It's just like aperture in camera lens

  • entnixe
    entnixe Před 6 dny

    do a slow mo on snail's eye ..

  • Stephen Samuel
    Stephen Samuel Před 6 dny

    since what may be known about God is plain to them, because God has made it plain to them.
    For since the creation of the world God’s invisible qualities-his eternal power and divine nature-have been clearly seen, being understood from what has been made, so that people are without excuse
    (Romans 1:19-20)

  • Fresh Avacado
    Fresh Avacado Před 8 dny

    5000th comment

  • Anand Kumar
    Anand Kumar Před 8 dny

    03:06 Save your time
    If you want to thank me ...then make it blue

  • Gamer929 W.I.P.
    Gamer929 W.I.P. Před 10 dny

    Its SFW but also NSFW at the same time

  • Sky Mackenzie
    Sky Mackenzie Před 10 dny +2

    Is Dan the long lost brother of Q from impractical jokers

  • Skylar Willow
    Skylar Willow Před 10 dny

    This is amazing

  • Sample Text
    Sample Text Před 11 dny

    Eye damage?

  • PoisionTap
    PoisionTap Před 13 dny

    How to make a human blind

  • SebArt
    SebArt Před 14 dny


  • Jesse McKenzie
    Jesse McKenzie Před 15 dny +1

    It’s just a tiny LED doughnut

  • BorisW150
    BorisW150 Před 16 dny

    How anyone can see the amazing design and function of the human eye and not believe in God is beyond me. Cheers.

  • PyroJasonExplodes
    PyroJasonExplodes Před 16 dny


  • amy lee
    amy lee Před 17 dny

    I wish they had then brought in someone with a really brightly colored iris

  • Kayla Brand
    Kayla Brand Před 18 dny

    Try a close up of skin mites. You would need an even stronger microscope lens!

  • Charles West
    Charles West Před 18 dny

    FYI Its not the Iris constricting it's the pupil the Iris is the colored party the pupil is the black that's the one that's constricting

  • SR.Strontium
    SR.Strontium Před 20 dny

    Stabilization in our eyes

  • Dishu is GAMING
    Dishu is GAMING Před 21 dnem

    6:53 its optical stabilization like in our phones 😂😂

  • The Generalissimo
    The Generalissimo Před 23 dny

    Our Irises look so funky in close up. I forget they look like they have hairs or whispy bits in them and aren't just solid colour.

  • Martha G.
    Martha G. Před 23 dny

    Well that sure made me feel... watched...

  • Mystery Mystic
    Mystery Mystic Před 24 dny +1

    At 6:14 I can do that aswell Dan it is so cool to see it

  • _alysugh
    _alysugh Před 25 dny

    my eyes are wiggling whilst watching this

  • Pedro Oliveira
    Pedro Oliveira Před 26 dny


  • Pratap Patil
    Pratap Patil Před 27 dny

    It's not half, its everything u see is seen by each eye

  • ThisIsDK
    ThisIsDK Před 28 dny

    Those are some funny I descriptions. I personally think the iris looks like a pineapple

  • John howard
    John howard Před měsícem

    The commentary in this video made my day....

  • Max Carter
    Max Carter Před měsícem

    6:12 I can 2!

  • Tracey Jacobsen
    Tracey Jacobsen Před měsícem

    5:39 it looks like hair inside of our eyes...
    Does anyone know what our eyes are made of? Some sort of chitin like our hair, teeth and nails...?

  • sascha schneiter
    sascha schneiter Před měsícem

    You have to do this again but with light from the side and som more people! That would be fantastic

    MUSA AMAN Před měsícem

    Instead of "light" why don't use "inferred"!

  • Matts Koldewijn
    Matts Koldewijn Před měsícem

    I would love to know if professors use these videos to show biology to their students...

  • Sir Nicholas
    Sir Nicholas Před měsícem

    Dan's iris might be the coolest iris ive ever seen.

  • FilmTyrant
    FilmTyrant Před měsícem

    Really neat!

  • Prithvi Srivatsav
    Prithvi Srivatsav Před měsícem

    I stared into Dan's eye for so long, I fell in love with him

  • Soph Stan
    Soph Stan Před měsícem

    Also they can do it in my left eye if they want cause I can see anything in that one so the light would not bother me!

  • Soph Stan
    Soph Stan Před měsícem

    Have they never got new coats? Love that it’s brilliant! Also has shown how many experiments Dan has been put through!

  • Hossein Ghanbari
    Hossein Ghanbari Před měsícem

    nice guys

  • Mic Krout
    Mic Krout Před měsícem

    This made my eyes water.

  • Tia Downes
    Tia Downes Před měsícem

    The pupil is a hole from the cornea to the retina and the iris tightens to decreases light intake to the retina and loosens to increase light intake to the retina. So, those wired looking layers of holes in the iris are a bunch of important micro muscles.

  • CoRteZz
    CoRteZz Před měsícem

    кто тут руский

  • SeshYown Studio
    SeshYown Studio Před měsícem

    that's stabilization

  • Mr Sealio
    Mr Sealio Před měsícem

    I clicked on the video and it started from here 😂 0:40

    FRED PHILIP Před měsícem

    There's a lot of order in the human anatomy but still a bunch of mad men try to convince us about some stupid evolution.

  • Xight
    Xight Před měsícem


  • Seth S.
    Seth S. Před měsícem

    iron mans arc reactor

  • duck head
    duck head Před měsícem

    subhan Allah

  • Kamran Sohail
    Kamran Sohail Před měsícem

    whats that background music at 3:34 ?

  • Ryan Nguyen
    Ryan Nguyen Před měsícem

    human eye stabilisation just like a camera

  • Cyfrin
    Cyfrin Před měsícem

    3:06 when the MDMA kicks in and youre off your nut

  • PatCh
    PatCh Před měsícem

    1. Dan should be holding the end of the lens until it is in position so his fingers can block it from poking his eye.
    2. You can have permanent vision loss from looking into the sun even for only a few seconds (though this is probably not as bright it still made me cringe).
    3. You don't need such a bright light, nor do you need the light entering centrally for pupil constriction (would've saved Dan from much pain from looking straight into the light).
    4. 4:55 pupil constriction*
    5. Awesome footage!

  • whocantexplain
    whocantexplain Před měsícem

    I used to know this kid in Boy Scouts that got off to eyes and specifically eyes dilating. I’m sure he’s loving this video. He actually asked me to film an eye dilating when I got the new iPhone 5s in slo motion. I refused.

  • MarsanGamer
    MarsanGamer Před měsícem

    i will never sleep

  • Good Girl
    Good Girl Před měsícem

    If you need a lab rat for more iris videos I'm volunteering

  • Good Girl
    Good Girl Před měsícem

    I think the iris ones are my faves!!

  • Mike Athoe
    Mike Athoe Před měsícem

    dude that closeup was mind blowing

  • Naomi Coraggio
    Naomi Coraggio Před měsícem

    I love hearing Gav stumble around in the dark

  • Jalo Krause
    Jalo Krause Před měsícem

    I can shake my eyeball can you

  • De Spydar
    De Spydar Před měsícem

    Im going to develop a phobia of irises