Myopia & Hypermetropia (Hindi) | Human eye and the colourful world | Physics | Khan Academy

Let's explore the common defects, Myopia (shortsightedness) and hypermetropia (farsightedness) using ray diagrams.
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[@khanacademyindia]

Hey, here's a dedicated CBSE course on our website where you can practice all the concepts related to this video and more. And oh, it's always free.
www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world

[@hardprank8057]

Sir aap only physics hi padate ho chemistry nhi padate

[@himanikoranga1842]

Really sir... Thanks

[@henilsnehapatel3062]

Sir can u say which app u use in explainatiin pls

[@toradebbarma4795]

Sir mujhe hypermyophia samajh nahi aya:(

[@kalpeshtiwari7885]

Thank you so much

[@mr.xgaming1126]

Your voice is like dubbing artist

[@shivamtiwaryslp8422]

O yes 😊

[@loveysharma9587]

I think he is

[@swarupchoudhar0568]

yes absolutely right😀😀

[@newsbharatentertainbyankur]

@Adisakti films

[@newsbharatentertainbyankur]

@Wave

[@wechillars9130]

😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭 where this video was ... i was in this confusion from 3 -4 months that how our lens change shape how the image is formed behind or in front of retina..... thankyou sooo much sir ...your teaching style is awesome 💯💯

[@kavitapabelkar9631]

Very well explained, thank you !! Will pass on the link to my students. I don't think I could have explained any better.

[@mogli8963]

Make lecture related to *Neet* exam!!

[@himanshusharma8455]

Sir bauhaut accha smjhaya

[@Nik-zy7hj]

You r great sir... 🙏🙏🙏

[@edu_withintrest3764]

Thanxx sir pura samjh Aaya aache se..thank you

[@sanjayaam]

Superb explanation of the concept. I was searching all over the web and nothing explains it like you have done. The important point is that when the eye lens is in unaccommodated position (looking at a far away object) the focal point is such that light from far off objects is focussing in front of the retina thus causing blur. *But* when looking at near objects the eye accomodates and moves the focal point around so that the image focusses on the retina. What this theoretically means is that people with myopia only need glasses when looking at something distant as when looking at something close like reading a book do not need glasses. This point is significant as today there is no such guidance for myopic people. They are asked to wear glasses all the time even when doing up close activities like reading. And in doing so they end up focusing the image behind the retina thus causing what is called hyperopic defocus which results in elongating their eyeball (esp for young people whose eyes are in growing stage) which results in further increas in the myopia power.

[@nanhi7173]

Before watching your videos: I hate Physics 😭😭😭
After watching your videos : I started understanding and liking physics.
Thanks Sir 😊😊😊

[@anilsarma9394]

I also

[@ariyan3836]

Abe 10th board aa raha hai

[@Morningstarintheroses]

@@ariyan3836 🙂

[@animalworld5155]

100th like

[@purnimadas1100]

Same

[@bariyazehra5961]

You saved me from failing ...finally i am cleared with these concepts ...Thnk you 💜

[@deepmalasharma5479]

Ur explaination is best sir👌

[@India02344]

Sir please explain the spherical mirror concept

[@sharikahasan5495]

Sir....wowowoowowowo....You've cleared all my confusions....Thank you...

[@army-mf9fj]

Army?

[@vaishnavigupta2501]

Amii💜

[@pujachaudhary4581]

Yes

[@hussainnasir1339]

Thank you so much sirr!! It was very informative.

[@statusyt1951]

I became a big fan of your explanation.....🤩

[@gamersandtutor...2981]

Nice style of teaching

[@vidhi_niralavidhi_nirala9104]

Awesome explaination.....👌👌

[@siddhipatil.4029]

Animination is best for defect
Good job 👍👍

[@aribanaaz1871]

Nice 👌thanks Sir 🙇

[@ankitpapneja3291]

Which software are you using to draw these images and illustrations

[@ankitpapneja3291]

@Ashutosh Pandey matches more with autodesk sketchbook pro

[@Funsukwangdu-r5g]

This video is very helpful 👍👍

[@manishkashi9099]

बहुत अच्छा समझाया
"कुछ ऐसे"😁

[@katilbrothersgaming992]

Nice sir I want more information about the chapter

[@abhinavraj3579]

Hats off to you......

[@tausiya114]

Thank you so much very nice explanation...well done 👍 bro keep it up 👍🙌

[@FarukKhan-xg7fv]

very nice video ... baki sab video se ye bohot helpful ha

[@devilking2397]

Your explanation is super.I can eaisly understand things from you what i not understand by reading it myself

[@khushisahukhushisahu8673]

Amazing sir
very best explanation.

[@risingaayush7995]

Great explanation sir

[@ftAlpha-yz1zs]

Jhakash hai sir

[@ashokkumarsingh1305]

U are great bhai

[@riyazjulgaji477]

Great super.....Amazing explanation... I M Jasmine

[@shazmawalikhan9285]

Absolutely Amazing explained....

[@mahendrazimate4760]

Sir your teaching is very nice😍

[@manni6303]

Gajab bataye hai sir superb

[@imranjaved7437]

from rangpur,Bangladesh
loving these vedios
great learning

[@kuldeepvaishnav5311]

Thnx for the superb explaination❤️❤️
Btw same pinch i also have myopia

[@thegodfather4614]

Very clear cut explanation 💯

[@dkgamingytr8508]

Sir Ray's are parallel then

[@rahulkumarraj6626]

Thank u for this vdo

[@PrinceKumar-oz1ux]

Niceeee sir

[@sanjanabagore356]

Nice sir

[@sonika4175]

Superb Explaination sir!!!🙇

[@raxaparikh7669]

thank you good if kuch bhi jarasa dekha after eye close bhi vo dikai deta he to reason and solution kya?

[@SACHINKUMAR-zt7qm]

Nice . I like this video and I also understand this topic..

[@ViewR880]

Watching from Bangladesh. Your teaching process is very good. Thanks bro.....

[@ujjawalkumar2767]

Ujjawal Kumar

[@himanikoranga1842]

You are fake

[@himanikoranga1842]

You live in india not Bangladesh

[@SubhashYadav-so6of]

Your explanation is super duper 😀😀😀😀🤩🤩🤩.........

[@ramniwasrajput7265]

Thanks it is very helpful

[@sandhyabanka7520]

Awesome way to explain!!!
U r the best who made me understand this good!!
Thanks so much fr ur help . Now I love physics as your explanations were awesome and once again thank you so much!!😀

[@abhijitsadhukhan8477]

Best ever.... You deserve subscription...😎😎😎

[@ManishKumar-jl2vl]

Is it possible that ciliary muscle cant stretch or contract properly and thus causes these two defects or is it due to defects in the eye lens.
Plz enlighten me

[@amritaganguly2531]

Yes , it's possible. It's occur at old age . This is called presbyopia . It can be corrected by *bifocal lens*.

[@infobasic99]

Ye vedios dekhne k baad physics ab achi lgne lgi h

[@basirulislam333]

What a very nice explanation!!!!!

[@ayyanalimughal7087]

sir apny to kha k jo image hy wo maximum focuss or minimum focus k darmiayn ban`na chaiay to ye to retina py ban raha hy plz mri ye confusion dor krdy plzzzz..........emii.........

[@padolemokshada4084]

Sir aapne bhut aachese padaya

[@AiInspire7]

I understand much by your voice only Thank u so much bro❤

[@all_rounder3247]

Katai jaher op samjhaya sir

[@Hrishikeshbaruah14]

Superb one

[@ffmafiaofficialgaming502]

These time is good lecture

[@educationworld7530]

U r awsome bro your videos are knowledgeable👌

[@tapankumarsingh304]

Thanks For Ur Explaination....☺️😊

[@shakeelahmad5549]

Wow superb ! Keep it up.

[@vijaykatheriya4627]

Awesome

[@navindaiwalkar1143]

Sir please make video on hypermetropia or astigmatism types

[@ranbirgamer362]

Good acha h

[@wechillars9130]

You are awesome sir ......!!!!!!!

[@tapinderjitsingh8361]

Itna acha explanation only in a breath 🤐

[@sugrivkumar8508]

Good information 👌👌👌👌👌

[@dineshmandal2335]

Very good explanation! Thanks Sir

[@dineshupadhyay384]

You are best

[@menofculturefc4700]

Kya hi padate ho ❤️❤️❤️

[@aditisingh8641]

Thanku sir

[@harshitbhorga629]

nice explanation

[@tkhankhoje39]

Great one sir

[@mohammadakdash8035]

Very very nice 👍👍👍

[@tasneemsayyedsayyed3219]

Pupil kay hota hai our pupil niche ane say kay hota hai pls batana maire ladke ka pupil niche agaya pls is kr bare mai bataw

[@jayeshpatil3974]

Loving the word 'puchaka dena'

[@asifsaif7019]

Your explanation is good

[@dhirajmahapatra1121]

we want carbon and its compounds

[@gyanchandsoni716]

thank you so much Sir

[@mannshah]

Batman is very good🤣🤣. But, on a more serious note, this really helped me. Thanks 😊.

[@tanishatri.]

Nice explained

[@priyamanik6640]

Superbbbbbbbb dialogue... Pichak jata h
😂😂😂😂😂

[@pankajbaghel397]

Kuch bhi bola ho samjh to aaya

[@thingsforever5898]

Don't laugh on any one don't find fault with others

[@damnyatharth]

Yes dont laugh on anyone

[@vanshmudgal3410]

Name the software which you are using to draw and illustrations

[@sudhanshhh_2004]

What a Voice❤️😘

[@rakhigautam1316]

Sar Pratidin Chashma Lagate Rahane se myopia me. Sudhar hota hai kya mera power kam ho jaega

[@knowthefacts5872]

Really good explanation

[@sakshamkhokhar3530]

Sir why you stopped uploading🥺🥺🥺🥺🥺 plzz tell sir 😓😓😓😓

[@vishvjeetsingh2168]

Hlo sir I have one doubt, in high conversing power of eye lens, is the near point shift less than 25 cm

[@poojapandey2717]

No, it remains same b'cauz when the eye lens become highly conversive then the eye defect called myopia arises in which we can't see the distant object. In this eye defect we can see the near objects clearly.

[@ghulamjunudchishti3440]

Good job

[@Deveshnigam777]

Sir in last What causes this problem [myopia] eyeballs big and lens thick kyo ho jata h
[Hypermetropia] eyeballs are small and lens are thin why these problem sir please reply 🙏🙄

[@sandhyabanka7520]

Good question!!

[@mikelarusso7597]

Due to. Movement of ciliary muscles

[@mikelarusso7597]

R UK Indian?

[@mikelarusso7597]

Can I talk in hindi?

[@mikelarusso7597]

Open NCERT see the concept of dark room and light room u will understand

[@anjaliraghav299]

Best video
Thanks

[@muskaanmuskaan9606]

😍😍😍 thankuuuu sooo...muchhhh......

[@Gauravyadav-sy5jo]

Sir please some video to chemistry.

[@neelimasharma6781]

To nhi bro of chemistry

[@nayyaropticals]

Very nice brother

[@suravimohanty2512]

What do you mean by curvature of lens ?

[@sabitathakur4805]

Curved nature of lens

[@sunitapandey8888]

Very nice explain sir

[@varunpradhan7412]

Bro you teach u very nicely

[@Artsandcrafts-0j4ns]

Nice explanation sir 💯💯💯💯