Do Glasses Ruin Your Eyesight?

  • Опубликовано: 18 мар 2017
  • Hank brings the answer into focus.

    Hosted by: Hank Green
    Support SciShow by becoming a patron on Patreon:
    Dooblydoo thanks go to the following Patreon supporters-we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi
    Looking for SciShow elsewhere on the internet?

Комментарии • 3 442

  • JOHN
    JOHN 2 дня назад

    Why do most Asians wear glasses?

  • Solar Wind
    Solar Wind 3 дня назад

    I used to think that as well. Good to know how it really is.

  • DogeMiner MLG
    DogeMiner MLG 4 дня назад

    I get headaches if i dont wear my glasses so yeah i dont really have a choice... also i cant really see anything unless its less than 30-40 cm in front of me, but the eye can only see objects 10-15 or more in front of you so i must always wear glasses. No joke.

  • Ebin Nisti
    Ebin Nisti 4 дня назад

    I had glasses from 3 to 9 y/o and now I can see far better than back then without glasses

  • Somina
    Somina 7 дней назад

    This was great, I have been researching "way to improve eyesight" for a while now, and I think this has helped. Have you heard people talk about - Patlarny Quit Glasses Principle - (do a google search ) ? Ive heard some extraordinary things about it and my co-worker got great results with it.

  • Saša Šoštarić
    Saša Šoštarić 8 дней назад

    Just wonderful, I've been looking for "what can i do to improve my eyesight" for a while now, and I think this has helped. Have you ever come across - Patlarny Quit Glasses Principle - ( search on google ) ? Ive heard some pretty good things about it and my partner got great success with it.

  • omar oyt
    omar oyt 10 дней назад

    yes it will ruin your eyes.. if you don't need them

  • Raven Skymaven
    Raven Skymaven 10 дней назад

    My mom kept telling me not to wear my glasses too much because my vision would get worse. But I sent her this! Ha!

  • Snxwman 1
    Snxwman 1 11 дней назад

    What about astigmatsm?

  • Aayisha Noora Jalaludeen
    Aayisha Noora Jalaludeen 11 дней назад

    Can I wear zero power glasses to watch TV

  • Joey de Koning
    Joey de Koning 12 дней назад


  • CaramelLeek
    CaramelLeek 12 дней назад

    ................Oh so that's why my eyesight is so bad now, it's cause the optometrists I had when I was young were all quacks.
    If only I had seen this video 10 years ago.

  • DosLosMango
    DosLosMango 13 дней назад

    What was that graph at 0:32? Doesn't make any sense at all. The lines were the exact same, but one extended farther?

  • deharleyva
    deharleyva 14 дней назад

    I'm nearsighted.

  • Riko Lime
    Riko Lime 16 дней назад

    Nifty connection: dim lighting makes you nearsighted. May have gotten this from another scishow video, but I remember it a few years ago. The dumb lighting we keep in our houses are to blame..

  • Екатерина Архангельская

    Yep, that's how they ruined my mom's vision. She had slight myopia, but the underprescribed glasses just made it worse.

  • Amy Curtis
    Amy Curtis 17 дней назад

    I love my glasses

    AXMIM 18 дней назад

    So, if this video was right, then this would mean that staring at a screen for 8 hours a day with no break increase the length of people's eye ball. Find this hard to believe.

  • Dual Wheeled
    Dual Wheeled 18 дней назад

    But Hank, in the morning before I put my spectacles on, I can definitely see better than at night when I take them off. I have proven this by reading my clock that is on the other side of the room in the morning, but can't even distinguish the hands in the evening.
    I'm not saying you're wrong, but can you explain this phenomenon?

  • Nestor Jr. Batungbakal
    Nestor Jr. Batungbakal 19 дней назад

    i guess im myopic

  • Starfals
    Starfals 19 дней назад +1

    Hmm, i also can use them... and they do make it a bit more clear, but i don't wanna bother with them. Its a huge hassle to clean them constantly and to always watch out if they are about to fall or not.
    Besides, when things are slightly blurry, they look better. :) Even women dont need make up :D

  • adidas Zoch
    adidas Zoch 19 дней назад

    No glasses improve your eye sight

  • Ella Smith
    Ella Smith 20 дней назад

    I have serious eye issue. The eye physician said there is no use to take any supplement but this vision improvement method *RestoreEyeVision. Com* truly improves my vision considerably. Before i started using it, my vision was blurry and my eyes were very dry. The developments showed only after 2 weeks of usage.?

  • Kylie Ogden
    Kylie Ogden 20 дней назад

    I found the best website that will help on eye sight problems visit *RestoreEyeVision. Com* I personally tried it and i get great results....

  • Son Dragneel
    Son Dragneel 20 дней назад

    Lol. All these people giving anecdotes, like that overrides scientific data from actual professionals. But clearly those scientists must be bought off by the industry, those anecdotes couldn't possibly be wrong

  • Meaghan Edwards
    Meaghan Edwards 21 день назад

    Just because you have glasses dosen't mean you can call yourself and others
    " four eyes " .

  • Whispҽɾ Nıgɧt
    Whispҽɾ Nıgɧt 22 дня назад

    I use glasses since kindergarten because i have miopia

  • Randall Stephens
    Randall Stephens 23 дня назад

    What about stigma?

  • Otokichi786
    Otokichi786 24 дня назад

    Presbyopia makes things fuzzy as you age...

  • Benny Brizeno
    Benny Brizeno 25 дней назад


  • Virexter
    Virexter 25 дней назад

    For some reason at night and sometimes day I see like little dots floating around... is this normal or what?

  • Shahab Eslamian
    Shahab Eslamian 26 дней назад

    Horrible explanation. Eye muscles are known to change the shape of the eye. Your eye balls aren't just long or short for no reason, they become that way because of tight muscles around the eyes.

  • Mtons_XD ^_^
    Mtons_XD ^_^ 26 дней назад

    Then why does eyesight get ruined when you watch tv or use your smartphone a lot?

  • Neil Tucker
    Neil Tucker 27 дней назад

    People can take eye improvement medications.

  • Game Boii
    Game Boii 27 дней назад

    But what if you wear glasses and been gaming all day, will that ruin your eyesight?

  • Zikamiri
    Zikamiri 28 дней назад

    What if you don't need them, and you wear them?

  • mega wolfbeast
    mega wolfbeast Месяц назад

    I just got my first pair of glasses today and watched this to see if this was true

  • Daniel Belmiro
    Daniel Belmiro Месяц назад

    I hate it, i rather be unable to see anything than wear a thing that makes me weaker. If you need to suffer some kind of stress like, being hit by a ball, run suddenly, fight against someone or something else, the glasses are definitely a disadvantage. I like sports and action, the only glasses I want to wear are the protective ones, when its necessary, maybe swimming glasses when im swimming at night, to avoid accidents. And glasses can make you look like a nerd.

    • Haiqal Zaki
      Haiqal Zaki 28 дней назад +1

      I know what you're feeling. But what's the problem of being a nerd if it's you being yourself? I'd rather satisfy myself to see things clearly than to pretend and not being able to see.

  • Kn1cknackz0
    Kn1cknackz0 Месяц назад +1

    I couldn't get glasses until I was older because my parents feared it would make my eyesight worse over time. So thanks for literally making my eyesight worse by keeping me blind as a child.

  • Ashton Brooks
    Ashton Brooks Месяц назад

    Four eyes squad haha

  • Maryann Robbins
    Maryann Robbins Месяц назад

    I have an identical twin sister. We both were prescribed glasses in 3rd Grade for nearsightedness. I always wore my but she hated glasses and barely wears them. My vision has continued to get worse and every year I need stronger glasses. My vision is now 20/120. My sister's vision is 20/40. I blame hours of looking at a computer monitor with glasses while my sister didn't.

  • Angela Chezick
    Angela Chezick Месяц назад

    THANK YOU! I have wondered why for 20+ years I had glasses I couldn’t see out of! I was 21 before I could properly see. By then my lenses where a quarter of an inch thick (with feather weighs) and I had bifocals since I was 14. I can’t get grams that are not plastic because my lenses will fall out otherwise.

  • Ms TinaBeana
    Ms TinaBeana Месяц назад

    I have astigmatism in one eye and the other eye is nearsighted. :/

  • saeed waleed
    saeed waleed Месяц назад

    Do computers actually make you lose eyesight?

  • Code
    Code Месяц назад

    And suddenly everyone in the comments have become scientists and are able to completely disregard what they just learned.

  • Brennan Labban
    Brennan Labban Месяц назад +1

    Im shortsighted

  • Saloni Sharma
    Saloni Sharma Месяц назад

    I'm virtually blind without them anyway so eh... Don't matter even if they did... 😂😂😂

  • Starlight Glimmer
    Starlight Glimmer Месяц назад

    that pun in the description tho

  • colt mc dougall
    colt mc dougall Месяц назад

    I’m in my early 40’s and by doing eye exercises I’ve been able to get rid of my reading glasses and improve my far sight.
    It’s like going to the gym you won’t get ripped in a week you have to have dedication to improving your body same goes for your eyes

  • Ricardo Buquet
    Ricardo Buquet Месяц назад

    Well in fact you CAN do eye exercises to correct for example astigmatism

  • gerland haisall9
    gerland haisall9 Месяц назад

    I have serious eye problem. I visited a doctor and he said there wasn`t any treatment plan for the impairment, but I started using vision improvement method and noticed results. Before i started taking it, my vision was blurry and my eyes were very dry. The developments showed after Fourteen days of use.?

  • Hailen Ace
    Hailen Ace Месяц назад

    My myopia is worse than my moms' and my dad is farsighted

  • Taylor
    Taylor Месяц назад

    What about contacts

  • Bence Koczogh
    Bence Koczogh Месяц назад

    So you're saying using -2.5 glasses with -2.75 eyes just makes things worse. Great

  • Bente Rowland
    Bente Rowland Месяц назад

    When I went to the eye doctor they said that if you have like -3 eyes, they give you -2.75 glasses to kind of try to stop your vision to get worse zjizhd

  • Alexander Alexandrov
    Alexander Alexandrov Месяц назад

    Theres a reason for myopia and nobody is talking about it
    Sick humanity:/

  • HappyPig05
    HappyPig05 Месяц назад

    I see fizzes when I take my glasses off, can anyone help why my eyes are doing that?

  • karlpilkington1990
    karlpilkington1990 Месяц назад +1

    i used glasses and i never had problems with hindsight

  • gamer'srealm
    gamer'srealm Месяц назад +1

    i'm near-sighted.

  • Karla Co
    Karla Co Месяц назад +1


  • Enigmax200581
    Enigmax200581 Месяц назад

    I've had the same glasses for the last 10 years... I haven't noticed any changes.

  • AJ Forrester
    AJ Forrester Месяц назад

    I’ve only heard that wearing glasses when you don’t need them would worsen your vision

  • Kimberly Smith
    Kimberly Smith Месяц назад

    What about contacts ? I wear glasses (because i hate things around my eyes like fingers ) but sometimes i think about trying out contacts.......

  • Plautus
    Plautus Месяц назад


  • Dakila Lozano
    Dakila Lozano Месяц назад

    well glasses can hurt your eyes if you know what i mean 😀

  • Roy Ong
    Roy Ong Месяц назад

    My parents said only use them in class cuz my eye will be weaker WTF NVM I'M GONNA WEAR MY GLASSES

  • Katie Moss
    Katie Moss Месяц назад

    You said bad eyesight has nothing to do with eye muscles. Scishow I have various issues with my eyes but one of them is underperforming eye muscles! I can’t see close up or far away without my glasses and part of that is eye muscles. Also because of this the muscles around my eyes overcompensate and try to do the job of eye muscles and fail.

  • Boiling Tv
    Boiling Tv Месяц назад

    And they said carrots would be good for ny eyesight but yet here i am with my glasses on

  • Coldmidnightian
    Coldmidnightian Месяц назад

    I have glasses the fricken suck

  • D Cam
    D Cam Месяц назад

    What about contact lenses? I heard they make your eyesight worse.

  • Delaney LaMon
    Delaney LaMon 2 месяца назад

    My eyeball is too long

  • Zeref Uzumaki
    Zeref Uzumaki 2 месяца назад +1


  • loom black
    loom black 2 месяца назад

    You don't need glasses you need vitamin c . carrots, lime and lemons

  • Plush Plush
    Plush Plush 2 месяца назад

    I’m myopic

  • Aaron CCS
    Aaron CCS 2 месяца назад

    wait then why does everyone i know (who wears glasses all the time) have to get stronger glasses almost every other year and i (i kinda need them but don't wear them 95% of the time) have the same pair of glasses for 6 years? i got it checked the other day and the optometrist said my 6 year old glasses are the exact prescription my eyes currently need, meaning no degradation over all these years.

  • Matthew Medeiros
    Matthew Medeiros 2 месяца назад

    I love how he just throws in "they may prevent them from getting worse", without proving how at all
    Also, I didn't hear adequate proof for his claim. A clinical trial called it into question. Okay? What else?

    MEME-AH 2 месяца назад

    I got an ad for glasses before watching this.

  • Abhishek Biradar
    Abhishek Biradar 2 месяца назад

    What if your nearsightedness is not genetic? Can eye exercises work in those cases?

  • lil cunt
    lil cunt 2 месяца назад

    Im near sighted in one eye and far sighted in the other

  • Awesome Sauce
    Awesome Sauce 2 месяца назад

    Without glasses I wouldn't be able to see what's across the street cleary. Who asks this, if glasses ruin our eyesight explain why we have them prescribed to us when we have bad eyesight? Why wear them if they damage our eyes more.

  • Titanic
    Titanic 2 месяца назад

    Oooohhh that's why my vision is getting worse!!

  • George K
    George K 2 месяца назад

    How can someone be both myopic and farsighted? Optically this makes no sense yet people wear bifocals. Also, Wundt's lab test with inverted glasses demonstrated that the eyes (the brain mostly) adjust to different optical input stimulus. By your very own argument, we should be giving newborns glasses to correct for their hyperoic vision at birth. But this is not the current practise! Over time, the eye adjusts its length due to visual input stimulus. So, the idea that "glasses do not affect your vision" is not a myth. It has been shown to be scientifically correct and there are many studies to back this! At one point in the nicotine industry, doctors and movie stars (and feature films... film noir) were used to promote cigarette smoking, but the scientific evidence that showed a direct correlation to various cancers was proven fact. But, who am I to argue with a US $95B eyewear industry?

  • Berero Dimet
    Berero Dimet 2 месяца назад

    Can glasses change the structure of your nose since the light weight of the glasses stats in the same spot for long periods of time (ex. 1 year, 5 months)?

  • Otie Brown
    Otie Brown 2 месяца назад

    No, your bad habits, as a child, ruin your eyes. The minus, simply, compounds the problem -- and finishes them off ! That is science!

  • Racine Robinson
    Racine Robinson 2 месяца назад

    Thank you for reassuring me

  • Foxymutt 123
    Foxymutt 123 2 месяца назад

    My vision decreased DRAMATICALLY after I got my glasses. Before, my vision was always stable. Slightly blurry, but stable. I went to get my eyes checked and my prescription was so low. Now, my vision decreases so often that my I need New a stronger prescription within months of getting a new one. Why would this be? Yes I am aging, but still a child. Generally a child’s vision won’t decrease so rapidly. I don’t think I believe this.

  • mark pina
    mark pina 2 месяца назад

    What about sun glasses

  • Mark Schultz
    Mark Schultz 2 месяца назад

    The two types of glasses: reading glasses (the ones that we use to read) and video game glasses (the glasses you get if you watch screens for too long)

  • Raymond Perkins
    Raymond Perkins 2 месяца назад

    I’m farsighted

  • Raymond Perkins
    Raymond Perkins 2 месяца назад

    I’m farsighted

  • Alessandro Ghignola
    Alessandro Ghignola 2 месяца назад

    Does not correlate with my experience: gave up glasses, got out more frequently to force eyes to focus distant stuff in sunlight. Near-sightedness went away totally. From 7/10 to 10/10 in less than a year, no kidding. So... whatever, that’s my experience.

  • Ron Lewenberg
    Ron Lewenberg 2 месяца назад

    On the other hand, making sure kids are out in sunlight for at least an hour a day may help.

  • Justin Ruiz
    Justin Ruiz 2 месяца назад

    Never listen to internet trolls.

    You've listened anyway.

  • Kartick Ghosh
    Kartick Ghosh 2 месяца назад

    What if I'm myopic and don't wear glasses?

  • KGam In'22
    KGam In'22 2 месяца назад +1

    They ruin mine said with 3D effects.

  • Philip Bryan Dumoran
    Philip Bryan Dumoran 2 месяца назад

    I thought eyes don’t grow

  • Karl Scheel
    Karl Scheel 3 месяца назад

    I have prescription reading-glasses that I found are of very little help, because I can only see clearly through them if I keep my printed materials or computer screens at a fixed distance from my eyes (i.e., focal length), no more, no less. This makes my wearing them more trouble than they are worth, because I find it very difficult to maintain a fixed distance between my eyes and whatever I'm reading. Eyeglasses only help you if your eyes are able to FOCUS through them. Otherwise, they CAN make your vision worse.

  • Dark SurReal kNight
    Dark SurReal kNight 3 месяца назад

    Has anyone here tried Binuaral Beats to improve their vision? If so any good results?

  • CookiePlayzYT
    CookiePlayzYT 3 месяца назад +1

    The answer is: if they aren’t yours

    *now skip the science stuff and go watch something good*

  • Blizzarrdd
    Blizzarrdd 3 месяца назад

    Thought that
    Fully restoring
    Distance vision
    Would make
    Kids' eyes
    Grow even

    Why did I write this again....?
    I don't know