HOW IT WORKS - Contact Lenses

[@nopuedeser7814]

You think Da Vinci was just chilling and thought, “what if we can wear our spectacles....but IN our eyes?” and sketched a contact lense??? Man was ahead of his time

[@mtshyna]

Niiice. Dude was on his grind

[@AdrianaVlles]

He really was! He was a genius 😳

[@ADeeSHUPA]

@@mtshyna grind

[@Taizunx]

Someone before him most likely had the same thought, but wasn't as popular/known, and probably didn't write down the thoughts.

[@idelivermeats2952]

@@Taizunx you could really say that about anything though

[@Raez_XL]

I'm more impressed with all the machinery that makes the lenses

[@luluchannel3999]

Mechanical engineering students 😁

[@bran_rx]

@@luluchannel3999 + Computer engineers, it won't work without software.

[@Zhak7]

For people complaining about the video saying this is not how it works it's how it's made I totally agree with you. But you know what it works exactly like eyeglasses. First of all in order to know how it works you have to know why your vision becomes blurry. To keep things simple it's a matter of where the light focuses on the retina; The light rays come into focus in front of the retina (Nearsighted individuals). The light rays come into focus behind the retina (Farsighted individuals). The curvature of the eyeglass lenses bend the light rays as they approach your eye. It helps the rays focus on your retina, instead of behind or in front of it. The goal of the correction is to have the focal point hit the retina exactly where it should for ideal vision.

[@beautifulsunset9785]

U kinda have my DP

[@degativenelta]

Light rays can only be bent by gravity. Lenses *refract* it. Just a little note, didn't want to be mean

[@Olivia-cd9th]

xilinor I literally just learned about the human eye😂😂 I did an entire project on it. I learned about myopia (nearsightedness) presbyopia (near sightedness that comes with age) and hyperopia (far sightedness) and how images actually are produced, you actually see things upside down but your retina changes them into signals sent to your brain which flips the image around.

[@smitaghorpade7938]

Are you an science student or something??? Great knowledge

[@Diana-bp5yg]

Looks like 1990's videos

[@rach5682]

Probably from early 2000s...also love ur pfp

[@cocopoco2006]

Wow... pretty cool

[@stealthymonk8808]

@@rach5682 pfp?

[@rach5682]

Golden Gandoo profile pic

[@luluchannel3999]

I noticed that too, but why??

[@xaessedai]

My 10 year old was talking about wanting contacts instead of his glasses. This video was great in giving him a better understanding on how they work.

[@iver3109]

no one: KZbin recomendation after 5 years: lOoK THiS iS hOw ConTAcT LeNSes WoRk

[@apocalypse7224]

I'm not disappointed tho xD

[@thecoolring6431]

100th like😃

[@hrf6548]

Sana ol may contact lense

[@swiss3072]

5 SOSHI Of SONE SNSD 4ever na ligaw kana ata

[@ragingmoo157]

Contact group where you at 🔥 🔥 🔥

[@SR2active]

Thought TRTLS I mean I want them

[@kellypresley5157]

Here

[@sipttsdstannctloona9112]

Ayeee!

[@kaylee6895]

I jus got contacts yesterday lol

[@ragingmoo157]

It’s Just Me Infinity nice

[@pankaje250]

I thought I was watching HOW IT WORKS instead HOW ITS MADE

[@rishuuuuuu]

Leonardo da Vinci was just out of this world. Absolute genius

[@aozora_2k]

So basically everyone has a miniature Rinnegan in their eyes?

[@firstnamelastname1899]

ALMIGHTY PUSH

[@raymondluvs]

Chibaku tensei

[@KarmaaKraazy]

@@firstnamelastname1899 PLANETARY DEVASTATION

[@RedditStoryNights]

Bansho tenin

[@nimishsawant7734]

True. Me on my way to use Rinne Rebirth!

[@franklintangelo3456]

No wonder the sky is blue! I was born with contacts!

[@infires3725]

For anyone confused about why you’d want hard lenses: you wear them overnight, take them out in the morning and you have perfect vision. Only have one pair and they’re hella expensive

[@im_learning_bicth]

Infires So it moulds the defective cornea into a normal one?

[@xxxchaotixxx]

Wuhhhht

[@mahzorimipod]

that's ortho-k, a type of RGP. most RGP wearers can keep the same pair of lens for years, so it's actually cheaper. my record is 4 years

[@mackyme001]

2014: *Nope* 2015: *Nope* 2016: *Nope* 2017: *Nope* 2018: *Nope* KZbin 2019: Okay lets recommend this on November 17, 2019

[@prakash740]

Fck of

[@Jake5537t]

Macky December 17th for me LOL

[@fsantos8550]

2020

[@thieflack7132]

Now i understand why they are so expensive lol

[@nan123jishnu]

Thanks for the informative video without advertising people faces.. Best lens manufacturing video ever

[@Cattychin3870]

And the award goes to the inventor, thanks for making my life easy without glasses

[@brad5575]

0:42 your retina and iris is as unique as your fingerprints that's enough learning for today thank you

[@andychester]

Brad Omg yes

[@typicaltropics4540]

I shouldn’t be so surprised with human innovation but wow ,whoever invented this is extremely smart ,I’m so surprised by this bc I’ve worn glasses for 13 years and finally got contacts now at 17

[@hugodanz7269]

this is fascinating although the title should be How It Made not How It Works

[@qualeb8164]

Hugo Danz its a knockoff

[@bakainu3559]

Contact lenses : exists Spectacles : My time has come

[@dhruvdhariwal2914]

0:38 OMG its the Rinnegan.

[@triping4141]

HOLY SHIT IT IS

[@lilianac7472]

Dhruv Dhariwal legit screamed this out☠️

[@osafkhan4388]

Awesome video gives so much information about manufacturing of contacts.

[@cvntinadennys]

Still don't know how I can see with these things... Thanks KZbin

[@wmd40]

It's not that complicated. Google it. Lenses of all sorts alter the light that passes through them. Camera lenses, the lenses we have naturally in our eyes, eyeglasses and contact lenses. When a person has near or farsightedness their eyes focus the light incorrectly causing blurriness. Glasses and contacts correct the focus by altering the angle the light passes into the eye so we can see. They just focus our eyes basically

[@thecoolring6431]

@@wmd40 wasn't @Mykal s comment a sarcasm ?

[@mejlka]

Between 1952 and 1955, Otto Wichterle, the professor at the Institute of Chemical Technology in Prague, and Drahoslav Lím, his best student and assistant, worked on the development of suitable polymers in Czechoslovakia. The story of the discovery of a polymer for contact lenses is interesting and little bit funny. In early 1955 Lím did not manage to finish the work he had determined for that day, and did not finish his synthesized product and hurry to catch up train home to Senohraby. The next morning, he found that the mixture had turned into a soft, transparent mass overnight. Thus, a base material for soft contact lenses was formed. This was followed by a patent for a hydrophilic gel called polyHEMA, bearing the number 91918 and dated April 23, 1955. In the 1960s, Wichterle and Lím introduced the technique of producing contact lenses by centrifugal casting. This manufacturing process greatly reduced the cost of contact lenses and allowed them to be widely distributed.

[@kusumavathyk489]

Thanks for the insight😊

[@1953childstar]

Otto Wichterle teamed up with American Doctor Robert Morrison to manufacture and distribute soft contact lenses. Doctor Morrison unfortunately did not have the money or "clout", then Baush and Lomb snatched the material plus manufacturing process. Read the book "Robert Morrison" a man of vision.... ( He was my eye Doctor as well )..

[@KHANAS1F]

02:35 person making the lenses is wearing glasses 😂

[@naveedahamed5589]

🤣🤣

[@naveedahamed5589]

The Irony

[@shaynevalid7455]

HAHAHAHAHA

[@razrv3lc]

I wore glasses for years before getting my contacts just because I preferred them. Then I realized I hated my glasses more than I disliked the feeling of contacts in my eyes. He must just prefer glasses for whatever reason.

[@MsObeyy]

Scientifically looking at it glasses are cleaner than contacts. Anything with touching or improper sanitization runs a high risk of infection. My microbiology teacher always wears her glasses lol. All preference though. I have both but I mainly almost always use my clear glasses

[@erikacastilo12]

So basically you just put a piece of plastic over your eye with some sort of liquid make blur vision good vision?

[@ambuyat69]

Yes lmao

[@Howtoeatrocks]

Love how they kept a shot of him wiping his nose with his sleeve and touching the lenses 😷

[@unknownalt5845]

Will be getting contacts for the first time in my life soon :) I am anticipating to see my face without having to stand 2 inches away from a mirror and squint and seeing my face without glasses (this has not happened since elementary school when my eye sight worsened).

[@yenneferL98]

It's sooo much better with contacts, aplying makeup is so different when you actually see yourself in the mirror, lol. I was also very excited when I got my first contacts, just don't quit imediately if you can't put them in for the first few times, it can be discouraging.

[@iKarmie]

I was the handful that didn't struggle putting them in at all. My doctor thought I was lying when I told her I've never worn contacts before 😂

[@phoebechalk3845]

I didn't even think that they still made hard lenses. Pretty cool!

[@italydude515]

They don't

[@computerfreak696]

They do, i wear night lenses and they are hard contact lenses.

[@1953childstar]

@@italydude515 I wear them…. Gas Permeable "RGP" lenses.. They are worn by people who had failed Lasik surgery, Corneal aberrations and poor vision...

[@1953childstar]

RGP contact lenses are technically "hard" lenses.. There is nothing "soft" about them, I wear them.

[@pdube]

0:48 wohh! Transparent Chalks Are they dustless........

[@xyrielaxyl1502]

Welcome back to "Answers to questions I didn't know I asked"

[@garretthigginbotham6122]

Imagine being the first person to test them out

[@kurodaiya8155]

I have never honestly thought about how they work 🤔 But I'm glad YT recommended this to me after I had my laser surgery done and now I don't need them anymore 😊👍

[@teknofil007]

Intresting to se and learn! Contact Lenses is High Teck!

[@paigecox4492]

I just got my lenses today and I was curious about how they were made. They are difficult to got out but easy to put in for me

[@ernestomarquez4972]

I'm starting next week:)

[@paigecox4492]

@@ernestomarquez4972 well good luck😁

[@SuperWigMaker]

They submerge the lenses to colour and it coats everything, I saw it coated even the pupil, wouldn't that make the eye see through tinted lens and act as a colour filter. Coloured contact lenses are printed nowadays, I have never seen a coloured contact lens be like this.

[@1953childstar]

That is an older type… A "tinted" lens, not a cosmetic lens.

[@heatherhutton1117]

"Dyed to help people find the contacts" Me who literally wouldn't be able to drive without glasses/contacts: "where did it go!?"

[@lokeshlokey4556]

2:30 why the hell is that guy using spectacle as he is working in contact lenses Factory 😂😂😂😂

[@ashleysam1971]

Personal preference

[@naoroibambanu9491]

Becoz the contact lenses might burst in humidity and hot temperature.....

[@eepym1tu]

2:57 that looks so anime-ish

[@warmaster072]

0:38 so your telling me..... that i... could awaken the rinnegan...

[@gabrielfaria8656]

Watching this with my soft contact lenses

[@9hyrm]

literally just talked about contact lens with my friends and then this showed in my recommendations. never searched contact lens on youtube... huh..

[@jm5462]

Amazing!

[@ndronikusri1992]

Its not "How it works" Its How its made !

[@hallway7095]

Those are some THICC contact lenses on the thumbnail

[@sujitsharma3298]

Frm last 20 years i am wearings lenses .first it was nt plastic its was glass only .it was tough to care n wear n very much tough .lenses r mostly used by people who have high no for eg _6 n above .n blue colour is only to get ur lenses if is fall or it get mis place in urs eyes or on floor.colours does nt mk any difference in urs eye sight all u can see is as natural.but lenses is very good for me n i am happy with it .now lenses is cheap also n easily available .

[@mkvjjkbbklnb2512]

cant read that sorry

[@iKarmie]

I'm scared...

[@1953childstar]

"Glass" contact lenses have not been made since the introduction of optical plastics in 1936.. Glass would be too dangerous.

[@dindin1841]

The machinery is so interesting

[@joraelii910]

I've been wearing glasses for years now, yet still can't put my contacts on my eyes easily. Like it takes me 5 mins. for one eye. :((

[@iKarmie]

Did you ever practice "putting them in"?

[@MimikMaya]

That's nice, now i know how it works

[@dennyel2849]

Contacts are a blessing. -11.5 glasses make me look ugly assffff

[@parkjiminkilledhisownjams6097]

They pressed the run button! Dasi run run run

[@sadichchhasharma7885]

armyyyyyy💜

[@samzcp]

Omg armys are literally everywhere 😂😂💜

[@ohdreamglow7885]

We ARMYs are everywhere

[@tpbff266]

ARMYS WILL RULE THE WORLD

[@bijuvee123]

Borahae💜

[@YannMar]

It is really scary that this is in my recommendations, because I just got contact lenses yesterday😬

[@1997origami]

Probably because you watched some videos about how to put lenses on or off👌🏻

[@YannMar]

Nadim Kirout I actually didn’t. And I also didn’t Google anything about them

[@zahraabouzeid7624]

Google is spying on you 😂

[@zahraabouzeid7624]

Actually our privacy is not safe anymore

[@Youss45unreleased]

The mic picks up everything we say

[@lemonboy9yearsago760]

Eye now know how it works Eye enjoyed watchind these Eye am very lonely Eye need someone to talk to No wait Eye need some likes

[@DevinSnuckel]

Eye want to loose virginity

[@sai6532]

Why am I here, I don't even use contact lenses

[@brennaolewinski722]

No one wears hard contacts anymore, except one person I know who can’t wear soft ones

[@carolledamasceno3634]

Nope. Some people need to use the hard ones to correct some imperfections in the eye's surface. And they can only use the hard ones. That's more common than we think.

[@1953childstar]

@@carolledamasceno3634 Very true !! I can only see with hard ( RGP ) lenses...

[@1953childstar]

20% of all contact lens wearers use RGP lenses...

[@Bankable2790]

lol why does music that starts at 3:33 go so hard 🤣

[@aeuouae]

I do not wear glasses nor eye contacts, but thank you to KZbin recommendations.

[@ronaldwhite1730]

thank - you .

[@jahnaviii4269]

But hey, if it is dyed, does the user not see everything blue?😅

[@AbhishekSingh-tl1eq]

colour doest go over pupil

[@jahnaviii4269]

@@AbhishekSingh-tl1eq oooooo right right Didnt think of it😅

[@AbhishekSingh-tl1eq]

u can thank me by following me on instagram abhishek_r7

[@jahnaviii4269]

@@AbhishekSingh-tl1eq i dont have an instagram

[@AbhishekSingh-tl1eq]

:/ sad

[@AbhiKohli]

Nice

[@kranthiaryan6050]

2:31 They make contact lens.... But those doctors don't use contact lens 🤔😂

[@b.c.7741]

i always wondered

[@yupyup21ful]

Did I miss how the Rx for the contact is made? I didn’t see it lol

[@igorlipovac8178]

Real title: How are contact lenses made

[@akhenatenra2841]

I been wearing all type of cosplay lenses..... this video is so fucking awesome 😮

[@Who38377]

Erron Black cosplay huh?

[@akhenatenra2841]

@@Who38377 what is the matter 🤷🏽‍♂️ ?

[@Who38377]

Erron Black no nothing I think it's cool cosplaying!

[@viiecks]

They're actually casting a genjutsu guys, don't look into the eye. Rinnegan users such as me simply can't be fooled by this simple trickery.

[@qqwg-tn7nd]

i only clicked for the satisfying blue stick in the thumbnail yet i cant find it xD

[@TheEsdaniel]

qqwg12345 0:48 do you even watch interesting video bro!

[@qqwg-tn7nd]

Daniel Rodriguez where is your English?? In dying... this was 2 months ago lol

[@imAwareOfYourAddress]

@@qqwg-tn7nd time is non existent almost.

[@seastorm9548]

What are the causes of near and farsightedness and is it true that using the palming method while in the sun helps improve natural eyesight

[@iKarmie]

I'm nearsighted, and the only thing that I can think of that caused mine is when I was a little kid, and my dumbass thought it would've been a cool idea to stare into the sun until I saw yellow spots. I did this for almost a week on the bus going home, and boy I'd beat the shit outta myself if I could've stopped it... I wore glasses for 7 years and switched to contacts at the start of 2019 bc I hated cleaning the annoying things...

[@sketchyartz5167]

Wait so when you’re just buying lenses to change the colour of your eyes they do all this?

[@kimmillynn2161]

How does the liquid that forms the soft contacts magnify your vision tho?

[@salmanaisawesome]

When she opens her eyes that much, I was like does that help or was it for dramatic purposes?

[@iKarmie]

Idk why nobody answered this simple question, so I will. It 100% helps, you pretty much have to do it that way until you can do the one finger method. Thats like the training wheels to actually putting them in quicker.

[@EmviloriamE]

I posted my profile photo of me wearing contact lens in Facebook. Few hours later, KZbin recommended me this video. Now I'm scared.

[@kiramartin1575]

Where can I get a pair of these?!

[@kiramartin1575]

I know but don't actually tell me, I thought it would be cool to ask.

[@iKarmie]

If I didn't see your reply to...yourself...I would've told you where 😂😂

[@stevenrobinson7722]

0:12 Erm, no,contact lenses have existed since 1954 and the optic covered the whole eye an impression was made of the eye from alginate et al!!

[@1953childstar]

That fitting technique was originated in the 1930's… By 1954, Doctors were fitting Scleral and corneal lenses.

[@haley1718]

-5.75 and -6.25 prescription. Please try and beat that I feel so alone

[@rebeccadafydd7930]

Haley13 -5.50 and -4.50 not beating you but at least within range 😂

[@haley1718]

Rebecca Dafydd haha I appreciate the effort

[@1953childstar]

Now that is almost "average"...

[@mexicanprizefighter]

we'd be so effed' without computers..(remarks, I....as I type this..on my computer)

[@jenny_bearr]

mexicanprizefighter fun fact:before machines these hard contacts were actually made by hand. So there yah go

[@FreeDocumentary]

For all the viewers who want to know more about the physics of how contact lenses make you see clear, we recommend Scott's well made video: kzbin.info/www/bejne/aWirZp2Aoq2baLs Enjoy!

[@KOTYAR1]

Are hard lenses still being made?

[@C.R886]

Yes

[@ifrahluthfia228]

Am i the one here never use contact lense?

[@ibadatsidhu81]

No not just you.

[@imultron4851]

I'm about to use maybe yes

[@zubbys]

You're totally the one special person who's never worn them in this KZbin comment section. Totally.

[@lonelydeath]

I haven't used contacts either

[@mairady9763]

Never

[@ohno-cz6jb]

i wear hard contacts, ask me questions if u have any! edit: i have been wearing them for 4 years

[@yoonsea7977]

oh no doesn’t it disturb the eye?

[@rontaylor8641]

are you serious?? how are they like? i’ve been wearing soft contacts for about 4-5 years now

[@Catchmeifyoucan-101]

do lenses hurt our eyes

[@ambuyat69]

@@Catchmeifyoucan-101 Doesn't hurt, only the first 30 secs when you use it is sometimes irritating your eyes, after that you'll even forget that you're wearing contacts for the rest of the day.

[@ohno-cz6jb]

Bitieseu no. It reshapes ur cornea overnight and when u take them off, they stay like that for a couple hours before returning to the original shape, making vision blurry again. Therefore u have to wear them every night, they do not disturb the eye.

[@catoftruth1044]

there is a tint color. But how I can't see the tint shade from my eye? Why is it still clear?

[@BrittaneyBoss]

I don't think that how they make colored contacts these days. I mean that was definitely the first thought on how to do it. But just because you want to have blue eyes, doesn't mean you want to see EVERYTHING IN blue.

[@1953childstar]

The vision zone is clear...

[@ZiggyWhiskerz]

I don't have contacts or glasses so maybe you guys who do can answer this: WHO THE HELL WOULD WANT HARD LENSES????

[@its_me_witches4735]

There are medical conditions with the eye that they help with, and soft contact lenses dont go as high in prescription as hard lenses do.

[@destinywilliams9387]

Amalia Striker I think she’s just talking about the comfortability of a hard lense. A hard lenses doesn’t sound like it would be comfortable to put in or wear. I’m curious about hard lenses as well.

[@laxmimanandhar7570]

I had -5 power on both eyes. The doctor insisted on getting hard lenses. Soft ones last for shorter period and are for lower powers. The hard ones I got were uncomfortable yet I started wearing them, but there’s so much dirt and dust in our roads, I couldn’t bear it. Once I stepped on it and it cracked so I just continued with glasses since then! Now I have -6 😫

[@carolledamasceno3634]

Well, I would love it! They are more durable, smaller and easier to clean than the soft one. But the price is sky high here in Brazil (R$1200 or more) and they are a little bit harder to adapt to, so I'm going for the soft ones.

[@1953childstar]

@@laxmimanandhar7570 Very true..I am in the same situation.. I cannot drive a car without hard lenses..

[@gayathrikathirvel3892]

Okay why it's in my suggestion list???

[@julianavillarba5483]

the thumbnail look like chalks

[@quinnisabel_]

i thought it looked like hot glue gun sticks

[@foreversimgirl828]

Squeakie Meister that’s what I said 😂

[@ICOD73]

diamond drill? It is called a CNC Lathe

[@thederp6505]

I used to wear contact lenses all the time, it just got really annoying to take them out and putting them back in and it just feels like the rim irritates my eyes. One day in the future Im going to get lasik hopefully the technology gets better in a few years.

[@ignisdeus6172]

i'm also thinking the same exact thing mate..wore contacts for 5 years straight and now i'm wearing glasses.....its much more convienent

[@thederp6505]

@@ignisdeus6172 yea i felt alot more confident with contacts though ahah but w/e

[@Cajondecosas]

It is kuregetzagt in a nutshell?

[@eunyounguzun2597]

why would buy normal color lenses the same color as your eyes? (Unless its circle lens, because this one makes your iris looks bigger)

[@1953childstar]

They are easy to spot if you drop one..

[@KaisserVince]

OMG there was a touch screen before?

[@lavenders9283]

Look at the video upload date...

[@ambuyat69]

How old are you?

[@kittycat802]

Didn't know there was hard lenses

[@joeybean_jojo2054]

Where my glasses 👓 gang at???? 🙋‍♀️🙋‍♀️🙋‍♀️🙋‍♀️

[@nashirartist]

Oh... technology!

[@Axtec36]

Cool

[@jiangchengsbathtub7815]

Is it normal that it hurts when you wear contact lenses for the first time??? Need answer pls...

[@kainaatbhola]

Hi, I'm Lan Jingyi 1205 it might burn a little but shud go away after a few mins, and ur eyes might get very watery which is normal, if its consistently happening then go to an eye doctor

[@jiangchengsbathtub7815]

Kainaat Bhola Thank you :)

[@mjg3267]

pretty cool and yeah I'm sure there a nice amount of work that goes into producing a soft contact lens but damn there too expensive, like acuvue oasis at 340$ for a year supply change 2 week, damn!

[@Coasterdude02149]

My contacts aren’t that expensive. Cooper’s Biofinity. Think a years supply was $128.00. When I first got glasses, damn things cost over $500.00 and they weren’t designer frames nor my prescription that extreme.

[@ronaldteves3939]

0:38 rinnegan confirmed

[@toxicskies868]

0:38 it's the rennigon

[@splifffy5406]

Did you even watch the anime? Get the spelling right

[@rayw2707]

There's supposed to be a diamond grinder. Where are the diamonds?

[@kennethnevel3263]

This is all lathe work . No grinding or drilling.