Eye Doctors Debunk 13 More Vision Myths | Debunked | Science Insider

Eye doctors Dr. Rani Banik and Dr. Jennifer Tsai debunk 13 myths about vision. They explain what 20/20 really means, why you should always wear your glasses, and what blue light really does to your eyes. They also talk about whether eye exercises work — plus when you should start to worry about dry eye.

0:00 Intro
0:32 20/20 means you have perfect vision
1:16 Blue light will damage my eyes
2:58 You will lose your vision as you age
4:22 LASIK means no glasses forever
4:46 Color blindness = seeing in black and white
6:12 Eye exercises will improve your vision
7:34 Wearing glasses will make your vision worse
8:15 Dry eyes aren't very serious
9:42 If you sneeze with your eyes open, they'll pop out
10:50 Contact lenses can get lost behind your eye
11:42 Sunglasses aren't necessary
13:13 Floaters are always harmless
14:28 Two blue-eyed parents can't have a brown-eyed kid

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Eye Doctors Debunk 13 More Vision Myths | Debunked | Science Insider

[littlevoice_]

I think one on hearing would also be useful. Is it really inevitable that we lose our hearing when we age? Is it a sign of dementia? Why are those with poor hearing more at risk of dementia?

[asiawilk]

I am glad to hear that blue light isn't actually damaging. My full time job is working on the computer, but I never opted to get the blue light filter which would always shock my optometrist. But the truth is, I need to see colours correctly with my job and the filter interferes with that too much. I was always worried I was choosing to ruin my eyes to be able to pay my bills 😅

[ermatthe]

Regardless of 'damaging' eyes, when I got blue light filter glasses I stopped experiencing eye strain/twitching. My eyes would always start twitching around 2 o'clock at work. I got blue light filters over a year ago and haven't had the problem since. I won't be switching back just to save a few bucks.

[thecunninlynguist]

Contacts can't got lost behind the eye, but they can get lost at the top. Happened to me when I first was getting them in 7th grade. The first time one somehow got stuck past my eye lid and when I was putting on the replacement, it fell out and the doc was like I've never seen that before. The floaters one is the most scary to me because my current eye doctor told me that the vein to my eye is pretty thin and said my eye could fall out if it gets thin enough, so if I start to see more and more floaters, to contact her ASAP.

[thrumewindow]

My friend kept seeing floaters and when she got herself checked, it turned out it was blood and found out she has a growth in her brain. Always get yourself checked when something feels off.

[AnonymousOnimous]

I can't believe none of my eye doctors told me that Polarized lenses don't necessarily block UV.
I've lived in high UV places most of my life and have worked outdoors. I was so careful to get polarized lenses because I'd been told by family members those were the most effective against UV.
Only now am I learning I could've been better protecting my eyes this whole time!

[diablo]

One thing I learned from experience is that the glasses won't make your vision worse, BUT since I got my glasses way too late (in my 20s) I had already gotten used to not seeing right(shortsighted + astigmatism). Then as I started to wear them every waking hour, I got used to seeing perfectly fine. So now, when I take them off, I trip and run into stuff more often than I did before, but that is not because I see worse but because I am no longer compensating by being exceptionally careful. I think that often causes people to mistakenly believe their vision got worse.

[stefaniec]

I was literally "prescribed" eye exercises by my ophthalmologist. He said my problem wasn't myopia but rather exhaustion of my eye muscles, which was later confirmed by a dysautonomia specialist. I'm wondering if maybe there are cases where eye exercises or eye rests do help, or whether my eye doctor was simply misinformed.

[zachandley]

Commenting to boost the algorithm. I'm a COA in Arizona and more patients need to see this video. Very well done, very comprehensive, and of course very accurate. Thank you to the production team and the doctors.

[OmegaSpider]

While it certainly is unusual, it's not impossible to sneeze with your eyes open. I was recently diagnosed with a condition called Bell's Palsy, where one half of my face experienced muscles weakness. One of the symptoms included a weakened eyelid and blink reflex, so when I sneezed, I was fully able to see out of that eye every time. It was rather uncomfortable, and luckily healed up soon after, but because of that I can say that I have sneezed with one eye open.

[champadevi]

Thanks for debunking the blue light myth. I was tired of seeing the green tint so when I got a new pair of lenses I purposefully opted for plain glasses and that helped me to save Rs300 (that's like 4 dollars). My Doctor said I should keep using blue light glasses but I just refused and now thanks to you I am more than sure that I made the right choice.

[SirFrag]

It may not be damaging, but as someone who spends 60-80 hours a week in front of screens, I had noticably reduced eye fatigue, and general eye strain, when I started using glasses with a filter. The filter isn't even really noticeable on day-to-day things either, it just takes the edge off and makes a huge difference for me.

[chelseaakins]

Lasik: I had LASIK twice. I was 5/200 prior to Lasik. Went to 20/15, back to 10/20, before the revision. My eyes have settled to a very mild near-sighted again. I hover around 15/20 or -0.75 in both eyes now. I would love not needing glasses, but at least now I'm not legally blind if I forget them at home. The procedure did fix an astigmatism that was developing!

[RedPC]

I think people think the only reason blue light is damaging is because it can so-called "cause eye deterioration". Yes and no. Blue light doesn't directly affect your eyes, but because your eyes don't really close when you're playing a game or concentrating on a video, it can cause eye strain and dryness, which then those symptoms lead to blurriness.

[duffyporter]

If the original study about blue light damaging your eyes was done with cervical cancer cells, does that mean blue light could potentially treat cervical cancer? If so I think that could be really cool.

[daizbid]

One thing to note (and this is explained in the video but most people seemed to not actually watch it, just read the thumbnail): while blue light is not harmful to your eyes, it can still affect your circadian rhythm. Blue light sends the signal to our brain that it's daytime, and that we should be more alert. Setting a blue light filter on your phone, computer, etc., using blue light filtering glasses, or simply limiting nighttime screen use can all be beneficial to your sleep, and thus to your health.

[Lil_Lobo]

When I 1st started wearing contacts I wore gas-permiable contacts. My sophomore year I got poked in the eye and felt the lense go behind my eyelid. I went to 2 different ophthalmologists and could not find anything even though I could feel something there for 2 years. 12 years later I went for a routine ophthalmologists visit and when examining my eye lid. I blinked and my contact lens popped out with a whole bunch of skin cells growing on top and below it.

[ariacardwell]

I had LASIK and after 10 years my eyesight was so near-sighted I had to get glasses again. Yet my mother-in-law and husband had LASIK before me, it's been about 20 years since their surgeries, and they can still see perfectly. So you never know how it'll go.

[anitamudiaga]

Love this ❤️. I especially liked that you spoke about blue light glasses. While we advise patients to get them, it’s unethical to threaten them with vision loss if they don’t use them.

[vaszgul]

Not just in eyes, but in skin and hair too. Pigment takes a little bit to come in. I hear a lot of silly stories from first time parents thinking that a child isn't theirs because the pigment hasn't come in. I'm half native, half white. Everyone in my family was born blonde and blue eyed like my mother and then half of us kids had our eyes and skin darken, and all of us had our hair darken to varying shades of brown and black like my father.

My mother's eyes also changed from blue to green when she was 43 while undergoing chemotherapy. They've been green ever since. Not sure why that is.