Myopia and Hypermetropia

Рет қаралды 52,107

10 ай бұрын

Myopia and Hypermetropia
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Myopia and hypermetropia are two common refractive eye conditions that affect a person's ability to see clearly at various distances. They are often referred to as nearsightedness and farsightedness, respectively.
Myopia (Nearsightedness):
Myopia is a refractive error in which a person can see objects clearly up close but has difficulty seeing distant objects clearly. It occurs when the eyeball is too long or the cornea (the clear front surface of the eye) is too steeply curved, causing light entering the eye to focus in front of the retina instead of directly on it.
As a result, distant objects appear blurry while close objects can be seen clearly. Myopia can develop during childhood and often progresses over time, especially in teenagers. It is commonly corrected with eyeglasses or contact lenses that have a concave (minus) lens prescription to help shift the focus of light back onto the retina.
Hypermetropia (Farsightedness):
Hypermetropia is a refractive error in which a person can see distant objects more clearly than nearby objects. It occurs when the eyeball is too short or the cornea is too flat, causing light to focus behind the retina instead of directly on it.
People with hypermetropia may experience blurred vision when looking at things up close, and they may have difficulty with tasks like reading or using a computer without correction. Hypermetropia can affect individuals of all ages and may be more noticeable as they age due to changes in the eye's lens elasticity. It is usually corrected with eyeglasses or contact lenses that have a convex (plus) lens prescription to bring the focal point of light forward onto the retina.
Both myopia and hypermetropia are common vision problems and can often be easily corrected with the appropriate eyeglasses or contact lenses.
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Пікірлер: 179

@aradhyasehgal7392 10 ай бұрын

It's known as presbyopia, also called old age hypermetropia (as this defect is commonly observed in elders) and it can be corrected by wearing bi-focal lens.Thank You Sir

@gnanamagp8903 4 күн бұрын

Thanks a lot by commenting..It's too useful to my tmrw's seminar❤

@GlitchGaming2010 5 ай бұрын

Legends have exam on monday 😂😂😂

@Nothing-fb6uu 10 ай бұрын

bi focal lens is used to correct both myopia and hypermetropia. the upper part of bifocal lens is concave lens and lower part is convex lens

@maheshshorts556 10 ай бұрын

You are the best teacher in the world. In teacher I found a diamond. Yes it's you. ❤❤

@ManochaAcademy 10 ай бұрын

Wow thanks a lot!!

@dnasoha2572 10 ай бұрын

Such type of defect is called presbyopia and its corrected by Bifocal lenses.. Thank you SIR for making our concepts clear 🙏❤

@basavaraj1684 10 ай бұрын

Wow..🙌🙌 Amazing video🤩🤩 Please make more practical videos such as this one

@Leticiah-kd7tb 10 ай бұрын

Thank you sir for all your physics tutorials, they have really changed my grades

@Aayushk_5002 10 ай бұрын

Great and easy explanation sir , thanku for this it would obviously help in eaxms .

@RufusMusicalChannel1000 10 ай бұрын

Bi focal lens are used for correction of both myopia and hypermetropia

@_Eshrath1034 10 ай бұрын

Hello Sir, Biconcave and Biconvex lenses r used 4 both defect visions hypermetropia and myopia..thnx.. Respected sir u r videos r suchly too amazing and incredible pls continue uploading like this Videos on other topics also like heart etc and Reproduction etc ..❤😊😊

@rithizx 4 ай бұрын

If a person have both Myopia and Hypermetropia means they can't able to see nearby and far away object... It is known as Presbyopia... It can be corrected with Bifocal lens ❤

@Paradise0008 9 ай бұрын

Sir , can you plz tell me that why did you used the concave lens to diverge the rays of light in the case of hypermetropia?

@LathaP-xg5my 10 ай бұрын

You are my world's favourite teacher

@ManochaAcademy 10 ай бұрын

Thanks a ton! Do share our channel with your friends!

@ephraimkiiza9405 10 ай бұрын

Sir am requesting for a video on detailed reactions of the hydrocarbons

@saraswatichaudharychaudhar2024 9 ай бұрын

@@ephraimkiiza9405 me also

@user-mo8vq9np6p 4 ай бұрын

Rappu maths exam kadha ps aandhuku. Epadu

@denislesiriko678 Ай бұрын

❤❤❤❤❤❤❤❤❤❤😮D😊

@user-vx2ff5vc6q 10 ай бұрын

Hello sir Your teaching is really good I loved all your videos Bifocal lens is used for person having both myopia and hypermetropia ( presbyopia)

@lalli9269 10 ай бұрын

Fantastic expalnation !

@naseeruddin9690 4 ай бұрын

Presbiopia can be corrected by using bi focal lens or concavo convex lens

@stanzinyangdol4141 9 ай бұрын

Thanks for informative lesson,

@otiebrown9999 3 ай бұрын

Positive and negative states of the normal dynamic eye. Depends on your perspective - that might be a mistaken assumption.

@user-yt8xj4qw1f 9 ай бұрын

Understood Easily. Thank you Sir

@Tanimols 10 ай бұрын

Thank you so much,this is going to help me for my exam

@MahadevMidhun 10 ай бұрын

i love your videos so much i am passing my boards because of you!!! youre the best teacher!!!!!

@ManochaAcademy 10 ай бұрын

Thanks a ton!!

@VinnuKiran 5 ай бұрын

The condition is called is presbyopia usually seen in old people and they suggested to use bifocal lens

@ashmitha20mokenapalli47 9 ай бұрын

very nice!! Thank you sir.

@tiktokworld84 10 ай бұрын

Can myopia be fixed with eye drops because of recent l went to the eye hospital and l was given systane ultra eye drops and optilyf capsules

@YASHART921 10 ай бұрын

Best Explanation ❤🎉 Thank you

@ManochaAcademy 10 ай бұрын

You're welcome 😊

@gnanamagp8903 4 күн бұрын

Sir I luv the way how u teach the concept too clear...Thanks a lot..we need more from u❤😊

@user-vw2fm7gu9d 5 ай бұрын

Presbyopia both the concave and convex lens are been used

@ThrillingRide-OP 10 ай бұрын

Sir please make a video about power of accomodation I have a lot of confusion

@rohitshastry2007 10 ай бұрын

Epic Video. Awesome way to visualize. Would have helped me too!!

@ManochaAcademy 10 ай бұрын

Glad you liked it! Thanks Rohit!

@bethechange5355 6 күн бұрын

Great explanation.. understood accurately

@vijayalakshmivemuri8456 10 ай бұрын

To correct presbyopia we have to use both concave and convex upper part concave lower part convex

@studydreams-ih1my 10 ай бұрын

Sir does the both lenses form image at the far point (myopic eye) and near point(hypermetropoc eye) which acts like object for the eye lens it forms image on retina ?🤔 Pls solve the query 🙏

@dhananjaysingh2121 16 күн бұрын

Presbyopia is a defect in which a person are not able to see far object clearly as well near object . They appears to come blurred. This defect can be corrected by usin bifocal lens.

@anilkumarpatwari1252 9 ай бұрын

Excellent sir🙏🏻🙏🏻🙏🏻🙏🏻

@Aiming-zw8xo 4 ай бұрын

U are best teacher Thank you so much sir 🙏🙏

@vibhavr.t3343 5 ай бұрын

THIS MAN'S THE GOAT!!

@risakharsyntiew3351 8 күн бұрын

Wow very clear explanation sir ❤

@Amxn_fr Ай бұрын

Sould I wear specs while reading and using mobile? I have myopia i can read book very clearly when it's near me. I can't see only far things.

@neetumalvi5341 8 ай бұрын

I have a doubt what happened in the case when people cannot see faraway object and nearby object

@uttamsamal768 10 ай бұрын

Wonderful

@otiebrown9999 9 ай бұрын

A nice presentation. But normal eyes are not box cameras - that you must assume they are!

@AnsaIslam-kr6lp 5 ай бұрын

6:00 sir why you place concave lens between light rays and convex lens 😢

@aayush_594 6 ай бұрын

Sir You are an absolute legend .

@ThrillingRide-OP 10 ай бұрын

You deserve billion subscribers

@sriritwikshastry9603 10 ай бұрын

Bifocal or Progressive Lens is used

@ThrillingRide-OP 10 ай бұрын

Sir you are God level teacher

@Dolipkms32912 4 ай бұрын

Sir you are a best teacher in the world sir where are you from a diamond teacher

@shivanigarg2680 4 ай бұрын

To use both lenses concave and convex

@ephraimkiiza9405 10 ай бұрын

Sir am requesting for a video on detailed reactions of hydrocarbons.thznkyou

@smgkvideospothangalkurdu942 4 ай бұрын

We use concavo convex lens is it right answer sir

@Game_on_time_to_play 10 ай бұрын

Delay stands for what sir

@harshavardan8681 9 ай бұрын

You are favourite teacher

@nursechiomambamara9702 10 ай бұрын

I have exams this morning you just saved a soul baby😍😍greetings from Nigeria

@florahchao7560 3 ай бұрын

Hi there

@florahchao7560 3 ай бұрын

I'm xavier nice 2 meet you. I'm from 🇰🇪 😊😊

@JACINTADOITA 4 ай бұрын

Thanks a lot sir

@adebisitolulope4033 3 ай бұрын

Good of you sir more grease to you elbow

@AnsaIslam-kr6lp 5 ай бұрын

Sir , I also have mayopia , is this a very serious disease

@user-zk6jm8ny2r 4 ай бұрын

Dr I was told by an eye specialist that I have a lazyeye(right eye) and can not be fixed...is it true?

@anythingyoucansee7400 6 ай бұрын

If a preson is suffering from both myopia and hypermetropia, so he should use bifocal lens.

@ManochaAcademy 6 ай бұрын

Super! Correct answer!!

@mandaharika9723 4 ай бұрын

That's called presbiopia bte

@mandaharika9723 4 ай бұрын

*byopia

@Juck_Hunter. 10 ай бұрын

Hii sir, why u kept biconcave lens front of the parallel rays in hypermetropia 6:48 But, why not u kept the biconcave lens before the parallel rays at the time of myopia 3:01 Please answer my question sir

@soumit3752 10 ай бұрын

Bifocal lenses in used for both myopia and hypermetropia

@Cgaran-s1z 2 күн бұрын

Convex and concave lens is used for presbiopia.

@user-vx2ff5vc6q 10 ай бұрын

Can u teach based on radioactivity sir

@sriritwikshastry9603 10 ай бұрын

WOW!! Such An Amazing VIDEO!!!

@ManochaAcademy 10 ай бұрын

Thank you Sriritwik!! :)

@soup4241 5 ай бұрын

thankyou!!

@CorneliusDan 10 ай бұрын

Bifocal lens is use to fix both myopia and hypermetropia sir

@akshajaniket2538 10 ай бұрын

bifocal glasses are used for correction of presbiopia

@RobertSimfukwe-cg2zs 2 ай бұрын

It can be corrected by wearing focal lens glasses

@pallaviswanath7271 2 ай бұрын

Concave lens is used in both conditions

@Thamminenichanukya8164 6 ай бұрын

You are my favourite sir

@ManochaAcademy 6 ай бұрын

Thanks

@omkarmane150 10 ай бұрын

Hii sir ur teaching is class ❤

@ManochaAcademy 10 ай бұрын

Thanks a lot

@LathaP-xg5my 10 ай бұрын

Sir i have a question how can a biofocal lens covnerge and diverge rays

@LathaP-xg5my 10 ай бұрын

Sorry bifocal

@malathis3626 10 ай бұрын

Excellent 👌

@ManochaAcademy 10 ай бұрын

Thanks a lot 😊

@Juck_Hunter. 10 ай бұрын

Sir apload biology classes also sir please 🥺🥺

@usmetaompongen2625 10 ай бұрын

Genius teacher

@samyakjain5396 10 ай бұрын

love your videos sir

@ManochaAcademy 10 ай бұрын

Thanks a ton!! Do share our channel with your friends!

@user-xl9ig6rw6n 6 ай бұрын

You are my favourite teacher🙋

@ManochaAcademy 6 ай бұрын

Thanks

@joshivenkatesan4962 8 күн бұрын

It is corrected by bi focal lens

@OjuluKame 3 ай бұрын

You are the best I have ever met

@ByblessingsofMeriMaaDurga9189 10 ай бұрын

Can you explain and teach us about program in c&c++ We want thos class fastly and quickly😊😢

@tomcruise9317 10 ай бұрын

Real vs vertual image plzz explain cant get it

@mansasrivastava2390 10 ай бұрын

I am one of them, who has both hypermetropia and myopia 😅 Bifocal lenses are used.. In my childhood I had hypermetropia and then I had myopia, and now I have both 🙃

@mansasrivastava2390 10 ай бұрын

But, thans a ton sir!! For clearing my doubts about this topics.. Very useful video ❤ Keep it up Manocha Academy!! 😊😊

@tamannasantamoni8229 10 ай бұрын

Sir, we need a bifocal lense.

@kavithachannel8015 10 ай бұрын

Presbyopia, this defect we see in elders why because this defect comes as age .for this defect we use bi focal length lens

@pranavprasad6964 10 ай бұрын

Sir I am a student of class 9, and I am facing a lot of difficulty in understanding and solving problems on circles. Can you please make a video on corcpes for class 9

@user-hg4iy5in6t Күн бұрын

Both concave and convex lens is prescribed by doctor

@CorneliusDan 10 ай бұрын

You are beyond measured

@PErraiya-vy2eo 10 ай бұрын

Sir please explain the full chapter of metallurgy in inter second year please sir

@sukrut.ppurohit877 8 ай бұрын

Both concave and convex lens

@HAMIDALI-ye2tr 11 күн бұрын

For a parson having myopia and hypermetropia,they have to wear spectacle with progressive lens

@ShaguftaMalik-ln3ni 8 ай бұрын

Bifocal lens is used to fix both myopia and hypermetropia

@otiebrown9999 4 ай бұрын

There is no normal eye. You are either myopia, of Hyperopia.

@shravanshravan6447 6 ай бұрын

Bi focal lengths

@mitakhan4324 4 күн бұрын

Motu or Patlu ki jodi 🎉🎉🎉🎉the answer is cylindrical lenses 😊😊😊

@mitakhan4324 4 күн бұрын

E mota

@user-hg3ew6gc3z Сағат бұрын

Both concave and convex lenses

@gitikaanddhruvsworld1644 10 ай бұрын

It's presbyopia and can be corrected by bifocal lens

@dimpalyadav2718 10 ай бұрын

Can you please makes videos of class 11th and 12th

@ManochaAcademy 10 ай бұрын

We have uploaded few videos of Class 11 already. We will be uploading more videos of Class 11 and 12. Stay tuned :)

@dimpalyadav2718 10 ай бұрын

@@ManochaAcademy where I checked the playlist there is seems to be no video of class 11th

@user-up3yc3go8z 4 ай бұрын

Biconcave lens and biconvex lens

@ashrithgamer5292 7 ай бұрын

If both visions are blurry it is called presbyopia they should use bi focal lens

@LathaP-xg5my 10 ай бұрын

Super sir

@ManochaAcademy 10 ай бұрын

Thank you!

@CorneliusDan 10 ай бұрын

❤