The Nearsightedness Epidemic

  • Опубликовано: 30 дек 2015
  • While not the kind of epidemic you're used to hearing about, nearsightedness is becoming a major health issue in many places. Learn about how scientists are finding out the reasons behind the increase in myopia, and how sunlight might be an important component.
    Hosted by: Michael Aranda
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    Sources: (pp 18-20)

Комментарии • 3 643

  • Anshuman Namdeo
    Anshuman Namdeo 3 дня назад

    i knew today that i have myopia at the age of 20 and I'm really worried about how will i be able to treat it without lazer operation :(

  • High Overlord Snarffie Beagle
    High Overlord Snarffie Beagle 3 дня назад

    it's a conspiracy all caused by ophthalmologists to make more money, they're doing it by sending evil mojo by preforming voodoo spells

  • Paiges 26
    Paiges 26 4 дня назад

    I am living proof of this theory, I used be outside every second of every day when I was younger but when I hit like age 12 I started staying inside, on my laptop and phone and now I'm nearsided and have glasses all of a sudden;(

  • Angela M
    Angela M 6 дней назад

    I've needed glasses for nearsightedness since I was in 3rd grade (became a problem in 2nd)....does that mean I'm not as stupid as I think I am? (also, lol, this is a joke. Correlation isn't causation, I know)

  • Riel Redwolf
    Riel Redwolf 7 дней назад

    This talks a lot about the eyes during development. Could spending an extra hour outside during the day help a 20 year old who's been nearsighted since 6 get better eyesight? Or at least maintain the sight I have?

  • Abhay Sharma
    Abhay Sharma 10 дней назад

    Is there is any relation between being a night owl and myopia.

  • Red Francisco
    Red Francisco 15 дней назад

    This makes sense... But his pretty face is so distracting haha

  • Shadow Sweetheart
    Shadow Sweetheart 19 дней назад

    Myopic at 12. I hate my life sometimes.

  • TechMantra
    TechMantra 21 день назад

    I'm going to give myself laser eye surgery by staring directly at the sun.

  • Jade M
    Jade M 21 день назад

    im young (9) and im nearsided

  • Daniel Fitzpatrick
    Daniel Fitzpatrick 22 дня назад

    I'd believe it. Three years into police work on the night shift exclusively, my eyes started to blurr. I stopped night work and now am outside often eyes problems.

  • Unknown Studios
    Unknown Studios 22 дня назад

    I like never go outside but my sight is perfect

  • Arnab Mondal
    Arnab Mondal 29 дней назад

    Sun? No...

  • VandroiyIII
    VandroiyIII 29 дней назад

    Seems perverse to argue using an animal study with lens-induced myopia, and then just dismiss near work entirely. If I search for near work and myopia, I find individual studies and meta studies that all point to near work as a risk factor.
    My best guess: regularly look at distant, high-contrast objects in daylight. Emmetropization certainly has a mechanism to calibrate the eye; it's not surprising that it malfunctions if you don't give it inputs on the far end.
    Or people could just keep monkeying around with random parameters and create billions of myopic people in the meantime. It's not like there's any pressing problem and blindness risk or something. /s

  • Paige Vermilya
    Paige Vermilya Месяц назад

    LOL both my parents and all of my siblings are nearsighted to some extent

  • Redd Spider Lilly
    Redd Spider Lilly Месяц назад

    welp I have Myopia of both eyes -srugs-

  • Haibail101
    Haibail101 Месяц назад

    Me: is the firstborn. is watching this on iPad. Is nearsighted

  • The Goodly Dragon
    The Goodly Dragon Месяц назад

    My dad was quite nearsighted before his laser surgery. My sisters are both only slightly nearsighted. I'm nearsighted enough that if glasses didn't exist, I would be legally blind. But since I spent much of my childhood outdoors, and some of it outdoors in a tropical country, in my case genetics has to have a serious role to play. My brother, by the way, has better than 20/20 vision.

  • Tisa
    Tisa Месяц назад

    brb, sunbathing my eyes.

  • RedNeck Tactical
    RedNeck Tactical Месяц назад +1

    It’s not the amount of sunlight, it’s spacial awareness. If your in side the farthest your eyes need to focus is a couple 100 feet.
    If outside your eye will routinely focus much much farther, whether it’s cloudy or not.

  • The Friend of Many Squirrels
    The Friend of Many Squirrels Месяц назад +1

    This proves that smart people wear glasses

  • shiny x
    shiny x Месяц назад +1

    The other difference between inside and outside is that when you are outside you can look much further - like out to the horizon. You simply cannot focus on such a distance indoors. So it may not be the presence of "near work" but the absence of "far gazing".

  • Redgrave192
    Redgrave192 Месяц назад

    Sunlight you say? Cool, I'll go outside and stare at the sun for a while tomorrow morning, thanks guys.

  • tarjei99
    tarjei99 Месяц назад

    There is also something about red and blue light if my memory serves me right.

  • Kyle Weir
    Kyle Weir Месяц назад +1

    What if I live in Scotland where the sun rarely makes an appearance?

  • M4SK1R0VK4
    M4SK1R0VK4 Месяц назад

    All I could think at the end of the video was 'Praise the sun'... Yes, I should go out more.

  • Monika
    Monika Месяц назад

    So that's why two of the three smartest people in my class wear glasses

  • Santi Romero
    Santi Romero Месяц назад

    So your telling me... the reason I'm not nearsighted compared to 70% of my friends is because my parents forced me to play outside compared to my friends. Lol

  • siukong
    siukong Месяц назад +1

    Perhaps it's not bright light alone, but the greater variations of light and dark in time and space that are more prone to happen outdoors. The sun goes behind a cloud, you walk through patches of shadow and light in a forest, light reflects/refracts/diffuses on various surfaces, etc. Versus the much more controlled and static lighting we find indoors (especially if one spends all their time in a very select number of specific rooms/lighting environments). This would make intuitive sense from a neurological perspective. Just as in the brain, the principles of neuroplasticity and "use it or lose it" could be very important in the developing eye.

  • Younes Layachi
    Younes Layachi Месяц назад

    yeah unless sunlight and uv damage your eye's cornea and your skin, damnit

  • Alexander Alexandrov
    Alexander Alexandrov Месяц назад

    I'm -6 and its disgusting

  • Mariko Mcr
    Mariko Mcr Месяц назад

    He so hot 😍he is always making me drool

    TEXASBLAZE 101 2 месяца назад

    Both my parents need glasses but i have 20 20 vision, AND im first born of my three siblings all of whom wear glasses AND i had a 88% GPA on my HS diploma and got my bachelors in mechanical engineering at 21

  • t0607889z
    t0607889z 2 месяца назад

    Singapore children at age 12 have to take a exam to see if they can get into the secondary school of their choice... Good job Singapore 👏👏👏

  • phantomfrogstudios
    phantomfrogstudios 2 месяца назад

    So I'm still not sure what the "cure" is. Is it just bright lights, and outfitting our rooms with LEDs would suffice, or is it something specifically from the sun, like UV rays?

  • HSPaint
    HSPaint 2 месяца назад

    The sun is a deadly lazer

  • Yusuf Hatem
    Yusuf Hatem 2 месяца назад

    So it stops or slows it but does not cure it?

  • The Chocolate Deer
    The Chocolate Deer 2 месяца назад

    I am nearsighted to the point where I can't see much without my glasses. lol

  • Praecantetia
    Praecantetia 2 месяца назад

    A virus would be easy so fix with possible natural recovery

  • Lil Schizo
    Lil Schizo 2 месяца назад

    the fuckin asians did it

  • David  Harris
    David Harris 2 месяца назад

    Couldn't it possibly be radiation from the birth of the nuclear age?

  • Chris Cartwright
    Chris Cartwright 2 месяца назад

    Could it be simply the fact that there are more far-away objects outdoors that eyes have to focus on and excersise that part of our eyes as opposed to everything indoors which is all up-close?

  • Brielle jacobs
    Brielle jacobs 2 месяца назад

    Hmmm stop myopia or premature aging on skin...
    I grew up in the Caribbean and was outside every day for hours and still am nearsighted

  • Mike's Awesome Blogs
    Mike's Awesome Blogs 2 месяца назад

    Unless u go hungry for an elongated time and pass out !!! Then your brain will be effected and suffer mild brain damage and that could effect your eye sight!!!

  • Gina MeC
    Gina MeC 2 месяца назад

    My oldest brother is the only one without glasses (and I'm the youngest and got them first) and my brothers and I were outside all the time as kids. By the time I spent most of my days inside I already had glasses.

  • isaaac
    isaaac 2 месяца назад

    If you look directly at the sun you won't be nearsighted, just blind.

  • Diane M Kuchins
    Diane M Kuchins 2 месяца назад +1

    absolutely ridiculous. i have been nearsighted since early childhood, and was outdoors lots. all kids were back then ['50's]

  • Stickin'Steps
    Stickin'Steps 2 месяца назад +1

    I feel this is only a half truth. I agree that sun light is extremely good for most everyone to be exposed to, for a whole list of reasons. I think it has more to do with the amount of distance available to your eyes. If you don't exercise your eyes you are bound to have problems, the same can be said about most body parts. My personal advice is to spend time outside (especially on days with high visibility) and look as far as you can, also change where you look fairly often from near to far. I could probably write a book on this because there is so much more to it. If you don't believe me just ask any hunter, land surveyor, or landscape photographer.
    P.s. The color green may also play a role in vision health.

  • Dejay Rezme
    Dejay Rezme 2 месяца назад

    So if you install brighter "daylight" lighting at home you can avoid becoming short sighted?

  • Krista Miller
    Krista Miller 2 месяца назад +1

    Where I live, about 9-10 months a year it's 95+ and 50+% humidity everyday. Going outside during that makes you more miserable and disgustingly sweaty than a stuck pig, with UV rays burning you in as little as 10 minutes. I can't do anything to fix that lol.

  • Jane Smith
    Jane Smith 2 месяца назад +1

    so just play video games outside and you'll be fine!

  • Nic R.
    Nic R. 2 месяца назад

    Farsighted club 🤚

  • Charles Steven Bojos
    Charles Steven Bojos 2 месяца назад

    My nearsightedness is so bad I can not clearly see objects farther than the length of my open palm

  • Dylan Pyon
    Dylan Pyon 2 месяца назад

    My eyesight is so poor

  • Setto Arisaki
    Setto Arisaki 2 месяца назад

    Both my father and mother a nearsighted. I am since a kid amd my brothers are too. I spend many hours as a kid outside, but not so much as a teenager.
    Both my brothers spend many times outside and one can be outside for 80+ hours a week in the summer.
    He still got was worse eyesight than I had at his age.

  • Todomo
    Todomo 2 месяца назад +1

    It feels so weird that I fit into these statistics so well.

  • Star is trash Wakfnaf furry
    Star is trash Wakfnaf furry 2 месяца назад

    I just got glasses... I’m still not going outside though. I don’t wanna socialize.

  • Lexi Sinskey
    Lexi Sinskey 2 месяца назад +1

    So that's why typical nerds have glasses and jocks don't

  • Muhammad Karimov
    Muhammad Karimov 2 месяца назад

    Wauw! This is one of the best videos which I have ever watched in RUclip so far!

  • Azalea Williams
    Azalea Williams 2 месяца назад

    He's so beautiful I can't handle it! DM me on ig zaddy @zayaluz

  • five six
    five six 2 месяца назад

    i think its technology in *some* *places* , not books

  • Noelciaaa
    Noelciaaa 2 месяца назад

    Huh, this makes so much sense! I've been a huge bookworm as a kid, so had been doing near work a lot but I often read.... Outside. And my sight is just perfect. Plus I've lived most my life in a room with lots of south-facing windows so it was always brut there. Similarly with my sister. But my younger brother is near sighted and nobody else has as really in our family. And he doesn't read books but he plays games a lot = sits at home all the time..

  • Kimberly Jacobs
    Kimberly Jacobs 2 месяца назад

    Butt I’m nearsighted in one eye and farsighted in the other

  • The Deflector
    The Deflector 2 месяца назад

    If my life allows me to go out every once in a while, then I wouldn’t have been less than 20/200.

  • Sara T
    Sara T 3 месяца назад

    So what's the difference between near sighted and having a stigmatism? Cause I have no clue. Can u have both?

  • LeZeus99 ツ
    LeZeus99 ツ 3 месяца назад

    how its made

  • Zone Doll
    Zone Doll 3 месяца назад

    both of my parents are long-sighted, i'm near-sighted, and my brother has perfect vision so this is incredibly interesting to me

  • Harold Kline
    Harold Kline 3 месяца назад

    When people are outside they focus on things that are farther away. This helps their eyes stay healthy through natural use and exercise. If nearsightedness is the loss of ability to see things farther away, then it stands to reason that the eye needs more practice and exercise focusing on things farther away. The only place one can do this effectively is outdoors. I think they are over-thinking this one.

  • ɮօʊռċɛ օʄʄ
    ɮօʊռċɛ օʄʄ 3 месяца назад

    We need an update video about this topic please.

  • Magic
    Magic 3 месяца назад

    Wait a minute I live in northern US and spend VERY little time outside, and yet I have 20/20 vision, as stated by my doctor? I'm confused.

  • David
    David 3 месяца назад

    But smart phones and video games are to blame, because children spend all their time inside using electronics instead of playing outside. God, I sound like my parents. It is true though.

  • Graeme Mark
    Graeme Mark 3 месяца назад

    I wasn’t short-sighted ‘til I was 29... Explain that science! 😉

  • Petra44YT Nein!
    Petra44YT Nein! 3 месяца назад

    Interesting! I wasn't nearsighted until the first of several high-dose steroid treatments (1,000 mg i.v. per day over 3 to 5 days).

  • Zeref Uzumaki
    Zeref Uzumaki 3 месяца назад


  • Michael Paone
    Michael Paone 3 месяца назад

    Why don't we just figure out additional ways to increase retinal dopamine too!?

  • all motor
    all motor 3 месяца назад

    your thesis is wrong. as a kid I played baseball, soccer, snow ski, AND surf I'm legally blind without my contacts/glasses. its due to genetics or genetic expression. so to correct your thesis. SOME people MIGHT benefit from sunlight.

  • 七転び八起きLeisure
    七転び八起きLeisure 3 месяца назад

    “The antidote to nearsightedness might be good ol’ fashioned sunlight”
    Me: *runs outside and directly looks at the sun*

  • inmemory oflael
    inmemory oflael 3 месяца назад

    Meh, install full spectrum lighting in your home and you've got the best of both worlds, especially for those that have difficulty getting time outside due to climate or health issues.

  • Hugh Cipher
    Hugh Cipher 3 месяца назад

    This is the obvious source of the "people who wear glasses are smart" stereotype. I unfortunately have high myopia & may need eye surgery soon. My eyesight is horrible & I hate it

  • Keith morgan
    Keith morgan 3 месяца назад

    So bigger windows in class would do the job. More so if they have something far away to focus on. Which is the real cure.

  • Theron thunder
    Theron thunder 3 месяца назад

    Glasses?education?glasses?education? I’ve went with education up until now and I’ve already got glasses so to late to turn back BUT there’s a thing I discovered in my education that’s called LASIK eye surgery. So people with glasses do not fear! We have been saved by nerds that are nerdier than us and decided to nerd up and solve it with SCIENCE and LASERS!
    DISCLAIMER: If your eyes are still developing (although that’s kind of our problem) then you won’t want to get the surgery as it could affect your development process.

  • Debbie Bezalel
    Debbie Bezalel 3 месяца назад

    Okay my dad is nearsighted, but my mom has great vision, and me and my siblings all wear glasses im the first born and im nearsighted (my myopia is worse than anyone in the family, even my dad), my sister has myopia too but not that bad, and my little brother is farsighted, my myopia gets worse every single year, while my sister's has stayed the same for over 2 years, i guess it has to do with the genes, because i go outside more than her to walk my dog SHE JUST SLEEPS AND WATCHES NETFLIX ALL DAY AND I DONT UNDERSTAND, and im afraid im going to be freaking blind by the time im 50

  • Miles Huff
    Miles Huff 3 месяца назад

    Nearwork causes Computer Vision Syndrome, which is temporary myopia.

  • Titanic
    Titanic 3 месяца назад

    Do I have high Myopia?
    My vision starts to blur at about .5 to .9 meters away. I can squint and increase it to 1 to 1.2 meters.

    • Titanic
      Titanic 2 месяца назад

      I already have glasses. I've had glasses since 2nd grade.

    • AkizaVesper
      AkizaVesper 2 месяца назад

      Get a pair of glasses or contacts and you'll be fine.

  • Christopher Jovez
    Christopher Jovez 3 месяца назад

    Did you ask some of your sources for permission to mention the information in your video or are you relying on fair use? (I wish all articles were open access)

  • Rowan Lore-Hale
    Rowan Lore-Hale 3 месяца назад


  • Jessica
    Jessica 3 месяца назад

    So I guess in the olden days, there wasn’t much technology like iPads so people went outside more. Now the is lots of technology so people don’t go outside and that is why more people have Myopia these days.

  • Faith Wolves
    Faith Wolves 3 месяца назад

    I think this is true. When I was younger I was always outside, but then I stopped because I live in the desert and it's hot. I kept this up for about 3 years, and now I have glasses ;-;
    Because near sightedness

  • Jasmine Vasquez
    Jasmine Vasquez 3 месяца назад

    He has a nice nose

  • Albert J. Nguyễn
    Albert J. Nguyễn 3 месяца назад

    Lasik 20 minutes, Sunlight 20 years.

  • hannan veera
    hannan veera 3 месяца назад

    So just stare at the sun

  • Sean Brunswick
    Sean Brunswick 3 месяца назад

    What about global warming?

  • a tired bee
    a tired bee 3 месяца назад

    I wonder if part of it might be the distances required to see the different environments? like if bear work might be a factor though you said it was inconclusive, a person who stays indoors a lot might not have as much need to see 200 feet away as someone who is outdoors a lot. unless theyre spending a lot of time in giant rooms i guess. dunno if thatd be possible though.

  • Arianna Silva
    Arianna Silva 3 месяца назад

    I've been severely nearsighted since I was 4 and have had a lazy eye since I was 8 months old. I am now 18 and odds are I'll have serve nearsightedness when I am 30 or sooner.

  • Zameel Mohammed
    Zameel Mohammed 3 месяца назад

    The link is actually between both near work and outdoor time.That's what the researchs show. The rate is not high in cases where people are involved in near work but compensates with outdoor activities.And is high in the vice-versa-case.

  • TigerShark
    TigerShark 3 месяца назад +1

    i thought whacking off caused this

  • Doomfire01
    Doomfire01 3 месяца назад

    Radiation to the eyes and magnetic fields all around us tv and cell phones .....

  • 冬Winter
    冬Winter 3 месяца назад

    That feel when your eyes are so bad, you can't see the big "E"

  • Nexus5 Google
    Nexus5 Google 3 месяца назад

    I guess the conclusion is: the smart people eye disease can be prevented by keeping smart devices at 100% brightness.

  • Fuck Google
    Fuck Google 3 месяца назад

    Did anyone else notice the correlation between heavily polluted areas and myopia? The reason why the Alaskan natives had a rise in myopia is because civilization came in, installing oil refineries, factories, and other sources of pollutants. In China pollution is notoriously high as is myopia. But I have yet to hear about a smog alert in Australia. The reason why going outside was not as beneficial as hoped is because sunlight can't help you if it can't reach you due to a near-permanent haze of pollution. The Alaskan natives didn't have this problem before because the atmosphere was clearer, allowing them more sunlight- just enough to prevent this problem. Unfortunately it didn't take much to screw that up. Furthermore, we are seeing an ever increasing occurrence of illness in wildlife which is directly linked to our pollution. To think that humans would not be affected by this as well is a complete detachment from reality.