Why so many people need glasses now
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Published 2023-03-07
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Over the past few decades, children around the world have been diagnosed with nearsightedness at increasingly high rates. Nearsightedness, or myopia, can stabilize over time, but it doesnât get better â meaning that myopes will rely on glasses, contact lenses, or corrective surgery to see for their entire lives.
The blurriness associated with myopia is caused by eyeballs that have grown too long; in a stretched-out shape, eyes arenât able to properly focus images onto the retina. Researchers believe that two culprits are to blame: the lack of outdoor play, and prolonged time doing up-close activities like using digital devices.
In some countries â like Singapore, Taiwan, and South Korea, where over 80 percent of students graduating high school are myopic â intervening the progression of myopia has become a nationwide effort.
Read more about...
The global prevalence of myopia: www.aaojournal.org/article/s0161-6420(16)00025-7/fâŠ)
How time outdoors reduces myopia risk: bjo.bmj.com/content/104/5/593.abstract
Intervention programs in Taiwan: www.researchgate.net/publication/339125514_IncreasâŠ
And intervention in Singapore: www.ncbi.nlm.nih.gov/pmc/articles/PMC8027142/
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All Comments (21)
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Every Tuesday in March, weâre talking about the human body â subscribe so you donât miss out! Our first video about the special kind of fat that helps kids stay warm is out now. Watch it here: https://youtu.be/zpcI_g_zrpk
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âHomework causes health problemsâ is the phrase every school kid wants to hear LOL
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I would've spent more time outdoors as a kid if my parents weren't so overprotective in my childhood
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I was really near sighted in my early 20s so last year I got laser eye surgery and honestly sometimes I still get emotional about it. My vision ended up even better than 20/20 and I honestly wasnât prepared for how good it would be. The day after my surgery I woke up and looked out the window and saw the leaves fluttering around on a tree that was blocks away and I just cried. Good vision is such a precious thing.
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I wore glasses from the time I was 9 to 24. I'll NEVER forget coming out of that surgery and immediately I could see everything around me with crystal clear clarity
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Wait, this suddenly makes the old stereotype that nerds or otherwise smart/bookish people wear glasses make sense. Someone who spent all their time reading and studying as a kid would be more prone to myopia and thus need glasses, and that's why people circa the 1950's started associating glasses-wearing with things like book-smarts and introversion, i.e. "nerd" traits.
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Australian optometrist here. Mark Bullimore is a big dog in the field, so you definitely found the right guy to interview. Very well explained and of course some simplifications but much less errors/myths than other videos on the subject.
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As someone who developed myopia at 6 years old and now, at 23 years old, my myopia is -11 and -9.5, this video is both interesting and terrifying.
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As someone whoâs dealt with myopia my entire life (currently -8.5), I canât imagine not being nearsighted and am so jealous of people with normal or almost normal vision (prescriptions between -3 to +3).
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Kudos for not trying to blame it all on recreational screen-time. The parents I know who fret about screen-time⊠the sedentary aspects, the indoor aspectsâŠ. Iâve never heard them complain about kids sitting at school, reading books indoors, playing board games indoors, etc.
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I spent 75% of my childhood outdoors, and my vision was 20/20. In high school I started spending more time indoors, doing my homework/studying on a laptop. Within 2 years of being in high school, I needed glasses.
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I'm 42 years old and have always spent most of my time indoors with tv and video games and my vision is still at least 20/20. Both of my parents started wearing glasses when they were younger than I am now. I consider myself extremely lucky at this point as nearly everyone I know who is my age and older needs their vision corrected somehow.
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I'm high myopic (-7.00/-7.50) and I spent a good deal of time outdoors as a child. And it doesn't seem to come down to my genetics as no one else in my family has such a significant need for vision correction. I used to work as an optician and I have to say that a policy is in place in most commercial optical shops to put glasses on every face that walks in the door. I think that in the past some people with moderate myopia were simply unaware of how bad their vision actually was but the prevalence of big optical chains and cheaper glasses has skewed the numbers a little. Off topic, but anyone interested should look into the mark-up that optical shops place on materials. Those $300 glasses on your face probably cost around $20 wholesale, often less than that. And those coatings and "UV filters" added are pennies if they even exist at all.
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Vox never ceases to amaze me as to how they can cram in useful and important information in such a short little video .
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Imagining lives of people with vision problems in a far past freaks me out I cant live without my glasses
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(19y) I spent the entire covid period and this winter indoors mostly at the computer, I developed weak myopia, but by spending more hours outside, especially at vantage points where you can look into the distance, my vision improved so much that it is almost unrecognizable from a healthy eye . if it is caught in the beginning, it can probably be corrected by changing the lifestyle.
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In a recent conversation with my optician, we discussed how it was interested that both of my daughters are also far-sighted like I am, but neither of my sons are. We were given advice similar to this on how to help them not develop myopia: hour+ outside a day, limit 'close work' in the evening and how close they put any books or devices.
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Optometrist here. Loved how this was packaged and presented! Thanks for bringing exposure to this.
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I remember the day my vision went from 20/20 to slightly near-sighted. I can still see without glasses but there is a slight blur when looking in the distance but nothing serious. I can't say I'm surprised as I spent a lot of time playing games and browsing the internet growing up at the time when technology really took off. While I did play outside as a kid too, I guess it wasn't enough đ .
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Thatâs interesting since my eye sight really got worse when I moved to a colder climate and didnât have neighborhood kids to play with like I did when I was in elementary school. I was stuck inside more, and I was attached to technology more than I had been as a kid. Makes total sense now that I have glasses