Do Glasses Ruin Your Eyesight?

  • Published on Mar 18, 2017
  • Hank brings the answer into focus.

    Hosted by: Hank Green
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    Sources:
    www.aao.org/eye-health/tips-prevention/five-vision-myths
    www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/myopia?sso=y
    www.bbc.com/future/story/20140513-do-glasses-weaken-your-eyesight
    www.ncbi.nlm.nih.gov/pubmed/9243655
    www.ncbi.nlm.nih.gov/pubmed/12445849
    www.ncbi.nlm.nih.gov/pubmed/24674576
    www.newscientist.com/article/dn3082-eye-correction-is-seriously-short-sighted/
    www.ncbi.nlm.nih.gov/pmc/articles/PMC4087177/
    www.mayoclinic.org/diseases-conditions/eyestrain/basics/treatment/con-20032649
    hyperphysics.phy-astr.gsu.edu/hbase/vision/eyedef.html#c1
  • Runtime: 3:19
  • SciShow  science  Hank  Green  education  learn  Do Glasses Ruin Your Eyesight?  glasses  refraction  myopia  farsightedness  vision  optometrist  

Comments: 3 192

  • StupidAss ElectronicZebra
    StupidAss ElectronicZebra 30 minutes ago

    So does my glasses hurt my growing eyes?

  • Shuren Caseda
    Shuren Caseda 7 hours ago

    Hi i have question what happen if some dirt or a very small stone etc poke your eye and didnt remove it you just blink many times and its gone where did it go just asking sorry for bad english 😶

  • TheBoomguy64
    TheBoomguy64 23 hours ago

    Sometimes, I like to take my glasses of, even tho I can't read normal sized letters or numbers.
    But I can see structures quite clearly.
    When I don't have my glasses on, letters don't become blurry, but double or slightly disordered, but if I zoom in enough, I can see them a little better.

  • Wise Rose
    Wise Rose Day ago

    children eyes continue to grow... by I've seen a 3 year old wearing glasses

  • Stardust
    Stardust 3 days ago

    Don't keep wearing your glasses people

  • Stardust
    Stardust 3 days ago

    I regret wearing my glasses because If I don't wear them I can't see when I take my glasses off I can't see I know my eye sight has gone worser

  • Video Gamer
    Video Gamer 4 days ago

    I'm nearsighted.

  • Marcus
    Marcus 9 days ago +1

    I'm fuckin glasses made my vison worst I have those thick lenses that make your eyes look small

  • Sandra Hawkins
    Sandra Hawkins 9 days ago

    i guess that explains why my eyes hurt when I take my glasses off

  • IntroWellness
    IntroWellness 9 days ago

    Properly prescribed glasses do allow you to see much better! If you ever go without them, especially if you have a minor prescription, it may feel like they’re making your vision worse. This is only because your brain is missing out on the clarity of vision you have WITH your glasses. Same goes the case for contact lenses.

  • Yakarot Sennin
    Yakarot Sennin 10 days ago

    Yep, my eyesight has gotten progressively worse, could be part due to reading in poor lighting and various other ways of straining your eyes.

  • Youssef KH
    Youssef KH 11 days ago

    Fake News!

  • Shyana Hemingway
    Shyana Hemingway 11 days ago

    Myopic ♡

  • • Cappturable •
    • Cappturable • 14 days ago

    my right eyeball is too long apparently

  • Maesha Rahman
    Maesha Rahman 16 days ago

    Guys go subscribe to SketchTube YT it's an awesome channel for those who are into art

  • Bi Vonsel
    Bi Vonsel 16 days ago

    This is the silliest myth I've ever had. My eyesight got so bad because I received glasses really late when I was a kid.

  • Lay Moo
    Lay Moo 17 days ago

    thx!

  • Prince Pradhan
    Prince Pradhan 18 days ago

    Correct

  • Johnny Boy
    Johnny Boy 23 days ago

    When I have my glasses on, I see blurry when objects are closer to me.


    Am I farsighted?

  • Windex
    Windex 25 days ago

    Four eyes - Four eyes! Wait i wear glasses....

  • Pasteur gains
    Pasteur gains 26 days ago +1

    I got glasses in 5th grade and they made me near sited and without them everything is a big blur now. my vision was fine before. so yea it makes your eyes lazy and dependant on glasses

  • Fujoshi27
    Fujoshi27 26 days ago

    My left eye hasn't developed properly, so when I look through it, everything is hard to see. My right eye is 20/20 though. I wear glasses to support my left eye and so my right eye doesn't go bad from doing most of the work.

  • Rizwan Khan
    Rizwan Khan 27 days ago

    I have hyprobia in my right 👀

  • Cookie Monster
    Cookie Monster 27 days ago +1

    Me: “Hey Guys, I’m Myopic”
    Everyone who doesn’t wear glasses: “Nerd”

  • Cristian Tomaquin
    Cristian Tomaquin 28 days ago

    I think it’s possible to get rid of glasses, PETER PARKER did so ya

  • WolfydaWolf129
    WolfydaWolf129 28 days ago

    I've been wearing the same glasses for almost a year and when i got them i was told I was close to legally blind and now when I take them off i can actually clearly see things about a foot away
    so clearly my eyes were not made worse by my glasses

  • Sly
    Sly Month ago

    #nearsightedsquad where you at!

  • Mrcatgaming/ Mrdogegaming

    I think I may have one eye being to long and one being to short

  • Goldfish_Overlord TheFirst

    I can't see a bloody thing without my glasses,and it's not cause I've been wearing them for years,the whole reason I started wearing them is cause I realized I couldn't even see the street sign outside my house.

  • jackthe ripper666
    jackthe ripper666 Month ago

    The tin goes! S. finish that

  • SwagGamer347
    SwagGamer347 Month ago +1

    My doctor said my vision would be better after a year I been wearing these glasses every single day now my vision is getting worse

  • sexy korean girl
    sexy korean girl Month ago +7

    superman wears it

  • brantleyrose
    brantleyrose Month ago

    I am on Team Myopic.

  • steve cannon
    steve cannon Month ago

    When I was a kid, my glasses (they were actually made of glass back then) were as thick as pop bottle bottoms. I was usually the blindest (most myopic) kid in class. Now, specs are plastic and so much thinner and lighter, but as I age I find that I am having problems with my prescriptions being too strong and I need to get weaker glasses. The ophthalmologist tell me I will never have a time where I won't need glasses, but when people get old (I will be 60 in 4 months) their vision will improve some, but not totally. Just enough that the prescription that I am wearing will be just too strong enough to give me headaches and I won't be able to see as well, so I get glasses that are less strong than the ones I was wearing. This has happened 4 times now. My mom had lens implanted when she had her cataracts removed and now needs no glasses. Wish I could get lens implanted like hers and never need glasses again (she wore reading glasses for a couple of years but now doesn't even need them).

    • Keep Calm and Call for Fire
      Keep Calm and Call for Fire 29 days ago

      Everybody's. They're generally made out of a variety of plastics or polycarbonate. Mine are made out of polycarbonate, for example. Glass is expensive, hard to work with, and easily breakable.

    • Lee Lottie Urquhart
      Lee Lottie Urquhart Month ago

      "my glasses (they were actually made of glass back then)" Who's glasses aren't made of glass!?!!!????

  • Timothy Thomas
    Timothy Thomas Month ago

    My doctor just told me I'm both far sighted and near sighted. D;

  • Ryptoll
    Ryptoll Month ago

    I'm near-sighted too but rarely ever wear my glasses cause the frames are either uncomfortable or just annoying. Especially the pressure on my sinus/nose bridge always increases my headache (which is already there to begin with) over time. I manage okay without glasses in most cases. My eyesight actually has gotten a bit better over the years, but exactly why is probably hard to know. It could be a hormonal thing, but it's just a theory. As long as it doesn't get worse, I'll stick to mostly not wearing my glasses, unless I feel I really need to.

  • Gamer 6482
    Gamer 6482 Month ago +1

    I am myopic

  • Paige Milner
    Paige Milner Month ago +1

    Glasses might make your eyes worse.. but I'd be walking into traffic without 'em!

  • Lone Wolf
    Lone Wolf Month ago +1

    I hate Glasses; I have one eye that is Near-Sighted, and the other is Far-Sighted but my Brain tries to Autocorrect both Eyes and I just wind up with being unable to see at any Distance.

  • Akis Seleo
    Akis Seleo Month ago

    You are wrong. Every time you get new glasses, your eyes need to "get used to them" by raising myopia. So, yes glasses can make things worse.

  • Marshal Pandemic
    Marshal Pandemic Month ago

    The comment section has more information than the actual video

  • Dhairya Deshpande
    Dhairya Deshpande Month ago

    1:41 ..What does the word "grow" mean??. Cause the fact is,, the size a human eye is always constant throughout a person's lifetime!! Is this video sponsored by some lens manufacturer??

  • Dhairya Deshpande
    Dhairya Deshpande Month ago

    0:50 the representation for myopic eye is correct while the hypermetropic(farsighted) eye is incorrect.. in simple words both the images represent myopic eye.. the image for the farsighted eye is behind the retina and the image is formed where the lights beams intersect!!, and to make a more accurate representation,, as you said the eyeballs change their shape into a more egg-like shape , why are both eyeballs spherical??..

  • Katie SJG
    Katie SJG Month ago

    wait. i thought it was short-sighted and long-sighted?

  • Vibin RBVVV
    Vibin RBVVV Month ago

    Is myopia can be cured???

  • Mellos7EnerGs
    Mellos7EnerGs Month ago

    I haven't changed my glasses in almost 10 years now and my vision still seems exactly the same. They should do a video on if Pinhole Glasses work or not.

  • S I L ̶E̶ N C ̶E̶

    Is there a point in which your eyes get so elongated (over time) that no lenses can correct them? Where is the line between myopia and straight-up blindness?

  • karthik puvvula
    karthik puvvula Month ago

    I don't do eye exercises and I use lens with half my number and within a year my eye sight improved slightly. I'm not claiming anything here, but just giving my experience. I need to start regular eye exercises soon and see the difference.

  • Internet Explorer 2.0

    you are promoting glasses

  • Fiona P
    Fiona P Month ago

    And you just maybe one of the lucky few, who after wearing glasses most of your life, reach 60-70 or so yr's and find out you no longer need glasses. Somehow everything's AOK with your vision( hope that happens to me)🤓

  • Jesse Georgiou
    Jesse Georgiou Month ago

    bad eyesight surely proves that evolution exists (evolution in the sense that things always change) hence the eyesight worsening

    • Kailyn Smith
      Kailyn Smith 10 days ago

      Jesse Georgiou
      That is actually the opposite of evolution. That would be called the 2nd law of thermodynamics. It is the universal law that everything eventually deteriorates.

  • Misses Witch
    Misses Witch Month ago

    When I was younger, I couldn't see much at all, My eyesight was really blurry. I couldn't see much more than a metre, But by the time I got to 12 years old my eyesight cleared up by about 90%, And by the time I was 15 I could see everything very clearly!

  • The Dynast Queen
    The Dynast Queen Month ago

    How come I could function okay without glasses for years yet when I got them and wore them for a few weeks I suddenly couldn't see nearly anything without them anymore?
    Is it just my eyes weren't used to actually seeing clearly that now I notice the difference or is something else happening?

  • Dolores Rosas
    Dolores Rosas Month ago

    I wear classes for my Astigmatism.

  • Parzival
    Parzival Month ago

    Why do I get a headache when I wear my glasses for like 2 hours?

  • flashy scroob
    flashy scroob Month ago

    Wait nvm

  • Carol Jo Martin
    Carol Jo Martin Month ago

    What is astigmatism?

  • • Tatiana
    • Tatiana Month ago

    2:27-2:40 so is that why my vision in 4th grade I had trouble seeing the white board from the back of the classroom and now In my 2nd year of high school I can't see my hand if it's extended all the way out? 🙃

  • Dwagin
    Dwagin Month ago +2

    Yes! Let's not trust the professionals who actually study this stuff, let's just go off our own personal experiences! Clearly the people who work in this field night and day are wrong....

  • Chingying V. Li
    Chingying V. Li Month ago

    I have some questions,
    1. Is it possible to reshape into my normal eyesight without surgery?
    2. I dont like glasses so i only wear it in class when i need to see things, is that bad? would that make my eyesight worse???

  • Kelly Marcella
    Kelly Marcella Month ago

    If my vision was mildly blurry and reasonably okay to deal with without glasses, I would just go without. But being nearsighted with a prescription of -3.50, I have to wear them all the time. The only time I take them off is when I'm going to bed.

  • Syeda Taqvi
    Syeda Taqvi Month ago

    Oh ok thanx

  • Syeda Taqvi
    Syeda Taqvi Month ago

    Informative.but I have a question that how our eyesight gets weeker? ?

    • multiplyx100
      multiplyx100 Month ago

      I think it's because the eye becomes less flexible.

  • Spoopy Skeleton
    Spoopy Skeleton Month ago

    idk about u noobs in the comments talking about just alright eye sight without glasses and how they make ur eyes worse and you can fix ur eyes w exercise but i have literally had this horrid vision since i first went to the eye doctor when i was 6. I didn't know that my vision was a problem and I thought not being able to see perfectly was normal so when i went my eyesight was terrible just naturally. I have never met anyone who needs as high of a prescription glasses as me. So honestly screw all you people hating on glasses and saying you can fix your eyes, because sometimes you just have to have them to see or you wouldn't be able to live normally.

  • Tayla Leonardis
    Tayla Leonardis Month ago

    This was actually so helpful, thanks!

  • v a
    v a 2 months ago

    Are you sure about all of this? I'm 40 and I just asked a very reputable eye doctor the exact same thing, and he paused, and said that yes it's true. To clarify, I'm 40 and have never worn glasses before, and asked him if starting regularly would put more strain on my eyes. Even at a correct prescription.

  • Paige Thakkar
    Paige Thakkar 2 months ago

    hehe eyeball workouts :P

  • Jacob Zimmerman
    Jacob Zimmerman 2 months ago

    I just know that my vision kept getting worse at a pretty crazy rate while wearing glasses and slowed down when I went to contacts. There are likely other factors, though.

  • Trish Brock
    Trish Brock 2 months ago

    I got it, totally understand why one needs to wear glasses if far or near sighted…you definitely explained the eyeball well. But how does the eyeball function for those of us that wear bi-focals, we’re blind without our glass for reading  or anything close, and we’re blind for driving, especially reading signs and seeing objects, like people or dogs coming at you. But we can see say if you are 2-3 feet in front of me just fine, no glasses required, well unless it’s dark, then I can’t see anything!

  • Mannon Dennison
    Mannon Dennison 2 months ago +1

    As a child I used glasses from ages 10 to 16 and then one day I just stopped. It affected me for the first couple weeks of months and then my vision felt focused and normal after a while so I did not go for a replacement. I did a eye exam for my exam at age 19 and my results showed that my vision was 20/20. I am now 32 and I have been doing an eye examination, as a part of my annual medical check-ups, for the past 8 years and my vision still remains perfect. Can you explain what happened in my case? Just curious. Ps: I was teased a lot by one specific person for wearing it as a child.

  • colinp2238
    colinp2238 2 months ago

    Both my lenses are artificial so haw does that affect my vision?

  • Sam Botardo
    Sam Botardo 2 months ago

    😩 my mom says I need glasses on a early age so I won't have to get glasses when I'm older but WHY

  • Steve Seguin
    Steve Seguin 2 months ago +1

    better eyesight = fewer babies.
    think about that one.

  • josh greg
    josh greg 2 months ago

    Me and my brothers have a rare eye condition and we have been going to mcmaster hospital and other special optometry places who teach and train new students to do eye tests for over 19 years well sometimes we would go 3 or 4 times a year we didnt know what we had so they were trying to figure it out and we noticed changes me and my older brother did anyway in years we went to see the docters 4 times by the end of the year our prescriptions would change drasticly as compared to years where we only went once or twice this was just in our heads thoe we didnt have any actual paper work to prove it. And my question is can all these eye docters who arnt professionals actually be ruining our eye sight because every single time we get sat down in a chair look straight ahead and they shine a bright light directly in our eyes and even use magnifing lenses to see the back of our eyes more clearly and were asked not to blink for a full 3 minutes or longer per eye as they do this (they are students so it does take them longer), everytime we went it was like this and even multiple times a trip alot of the time they gave us eye drops to fully dilate our eyes so even more light could get in and really me my brother and my parents all think now that that might be the reason we are as blind as we are and they might as well have shone lazer pointers in our eyes or made us look at the sun for 2 minutes a visit. So could this be the reason why our eye sight is so bad we are registered as legally blind.

  • Labels GT
    Labels GT 2 months ago

    What happens if I had one nearsighted eye and one farsighted eye?

  • multiplyx100
    multiplyx100 2 months ago

    My first glasses really hurt my eyes for a long time until I realised that the orientation of the lenses makes a huge difference. By twisting them round in various dimensions the glasses no longer hurt my eyes. I am astigmatic, but it's possible this might work on all glasses equally. You can flex your glasses from side to side, and then up and down (each side in the opposite direction), and see if your eyes feel more comfortable as you do it. This will move the centre of the lens, and therefore has the effect of changing the direction that your eyes are pointing in. If you are astigmatic you will also need to rotate each lens along the axis of your line of sight to find the optimal orientation to give you maximum focus. It might not be the same on each side, and it could vary over time.

  • Susan Farley
    Susan Farley 2 months ago

    I havent been able to afford new glasses for more than ten years. Went to an eye doctor a year ago and he said the vision in one eye had gotten better. Didn't get new glasses cause they were do damn expensive. Apparently, i wasn't elegible for their $79 special. Instead it would cost over $400. So i am still wearing the same glasses. Can't read with the bifocal part of the glasses so i have to take them off for close up stuff, and i can't see clear at a distance with the distance part of the glasses but can see distant stuff through the bifocal part. That's just weird.

  • Abbi Head 413
    Abbi Head 413 2 months ago

    I'm 12 I got told that I need glasses and that I'm nearsighted

  • Blacksquareable
    Blacksquareable 2 months ago

    "Too much reading and close work at the screen tires the eyes and can lead to shortsightedness." Alliance Optikk. Sorry, but it's actually mainstream and official. Weak eye muscles certainly do lead to vision problems, so you're also wrong there.

  • Dakila Lozano
    Dakila Lozano 2 months ago

    Hahahaahahaha😀😀😀
    I remember what my classmate said about this since i have 👓 . I just nodded and smiled 😅😅😅

  • M. Happy
    M. Happy 2 months ago

    As a woman, I truly hate my glasses. My hair gets caught in them anytime the wind picks up. Driving with the window down is nearly impossible to do. I can't snuggle while watching a movie because this action causes my glasses to move and the movie I'm trying to watch becomes impossible to see. I need two pairs of glasses just to make sure I don't go without one, in case I forget or break one at any given day or time. If I could afford it, I'd get corrective eye surgery and be done with it all!..😆

  • Spotted Hyena
    Spotted Hyena 2 months ago

    I have myopia and I take my glasses off for near work because it's actually easier on my eyes that way. I hope that doesn't come back to bite me in the future.

  • Bijay Gautam
    Bijay Gautam 2 months ago

    Is it possible to cure myopia by wearing glasses

  • Nick Diamond
    Nick Diamond 2 months ago

    Does that include reading glasses? Aka "cheaters". It's true for me that the eyes are the first to go. Usually in your 40's.

  • Otie Brown
    Otie Brown 2 months ago

    The answer, in science, is YES. In optometry, you will have rabid denial. Go figure !!

  • Ivona M.
    Ivona M. 2 months ago

    What about contacts?

  • Belinda Rodgers
    Belinda Rodgers 2 months ago

    I hate glasses

  • InternetTroll Alert
    InternetTroll Alert 2 months ago

    I got my first pair of glasses back in November and I've been wearing them almost everyday and I have noticed that my eye sight seems worse without them than it was before I got them.

  • ruben_ 10
    ruben_ 10 2 months ago

    WOW THANK YOU DOCTOR FOR RUINING MY LIFE

  • Michael Cent
    Michael Cent 2 months ago

    What if I don't get stronger prescriptions?

  • Pradumn Upadhyay
    Pradumn Upadhyay 2 months ago

    I thought that eye ball is the only body part that doesn't grow 😩

  • Lion Stylo
    Lion Stylo 2 months ago

    What if they gave me a higher prescription than I meed. Would that hurt it

  • Mr. Clean
    Mr. Clean 2 months ago

    just got glasses and my first day of wearing them ive had a few chicks linger around me, one lady even asked if i wanted a ride home. this never happens! what sorcery is this?

  • Gary Brocklehurst
    Gary Brocklehurst 2 months ago

    Who are the 550+ people who dislike this?
    Perhaps they see the ignorance as being a religion or something...

  • ʜʏʟɪᴀɴ ᴘʀɪᴅᴇ

    Today I learned I have long eyeballs. You know what that means, right ladies? ;)
    Yeah, I'm nearsighted :(

  • antiisocial
    antiisocial 3 months ago

    Lol. He called them needs!! Oh wait...that could be me.... Rock on Needs!!

  • Pensivity
    Pensivity 3 months ago

    I'm not wearing my glasses right now, because I was hoping that I would be able to correct my eyeball shape. Thank you for crushing my dreams Scishow.

  • The Garden of Eatin
    The Garden of Eatin 3 months ago

    Thing I like about glasses is that it's harder to get stuff in your eye.

  • SeaMacaw
    SeaMacaw 3 months ago

    I am myopic
    Brb im squishing my eyes

  • Friedel Majoor
    Friedel Majoor 3 months ago

    how about monoglasses? better or worse?