Farsighteness vs. Nearsightedness, An Explanation

In this video Mr. Swarthout goes over the difference between farsightedness and nearsightedness. Included is a description of why this vision problem occurs, what can and cannot be seen, the types of lenses used for vision correction and how the lenses change the path of the light rays entering the eye.
You can a listing of all my videos from my website, www.stepbystepscience.com

[@marissaberlanga2124]

Thank you so much for providing such a straightforward video about the difference between Hyperopia and Myopia and how these vision problems can be corrected! The illustrations helped make it way easier to understand and visualize the whole process! Wonderful video, thank you so much!!

[@catherinefusini5237]

I appreciate human beings like you and your existence. Thank youuuuu

[@stepbystepscience]

That is very nice of you to say.
You can see a listing of all my videos at my website, www.stepbystepscience.com

[@xlulonax5768]

I'm nearsighted in one eye and farsighted in my other...im both and just found out today...its really rare

[@stepbystepscience]

Just like my wife. She can see out of both eyes but her brain only use the information from her left eye. She has no depth perception and can not light a candle!

[@maya4660]

Just like someone I know

[@mturrentine-]

I’m rare to i have fractal hyperopia TwT I don’t know the percentage but I think it’s like 6 or something

[@khyra8954]

I’m both in both eyes

[@clairalison8389]

I have the same condition. I just found out yesterday

[@varunmangal9993]

bruh, by far the best explanation I found on this stuff. Finally after like three years I understand the concept.

[@stepbystepscience]

Thank you very much for the great comment

[@crazybanana6150]

It is kinda weird to think that people with far sighted have it harder to see going closer? Really, I thought if you go closer it would be better right?! P.S I am near sighted.

[@wassimnash]

Crazy Banana it is weird but you can control it. I am far sighted

[@snaidnietahi4654]

I am nearsighted as well. My eyes suck, they have since childhood. All I see is silhouettes at a distance without contacts or glasses. The really strange thing is although my eyes are still awful, the eye Dr. says my eyes have improved by about 30% in the last 10 years. I never did anything but rotate wearing contacts and glasses like I always do. I figured eyes got worse as you got older, not better. As far as "farsightedness" goes, it seems weird as hell to think that some people basically have it switched. I couldn't imagine how it feels not being able to see close up.

[@dbcnetwork6910]

Short sighted means nearsighted right

[@HS-eq3gk]

@@snaidnietahi4654 I'm meant to wear my glasses more (not all the time), but I have kind of grown to just live with not being able to see things that well which are far away, if I need to I'll wear my glasses, e.g. in school, weirdly I kinda like not being able to see things in high "detail" all the time

[@christaaaa_]

Thank you so much for this video! I have been struggling with this concept and you made it so simple!

[@stepbystepscience]

You're so welcome, glad it was helpful!

[@rogerclarke2233]

the eye looks like a stuffed olive
Blink💪

[@yordanosbeyene4538]

Thanks so much for this video, you got straight to the point and actually put lots of relevant and important information into each slide.This will really help me with my exam!

[@stepbystepscience]

Glad to hear, best of luck on the exam.

[@sukantabhattacharya548]

Thank you very much.
Helped me a lot for my 8th grade half yearly examination.
The lens video is really cool to!
Thanks once again!

[@pm829]

Awesome, clear & understandable explanation. Thank you, thank you, thank you.

[@stepbystepscience]

You are very welcome.

[@ryandoyle7664]

Best video i have seen on this topic. I work in optics and it is nice just to have a refresh.

[@stepbystepscience]

Glad you liked it and thanks for the comment.

[@JamesByrne-vt8ns]

I intend to use this at the Lion's Club free Vision Clinic for the indigent to explain the concepts to our clients. Your narration and graphics are just what are needed to occupy them while they await their exam.

[@stepbystepscience]

Thank you so much for your comment, I'm glad this video will help people in need.

[@adashofflavour3717]

very clear, simple and straight to the point. You can not beat this!! thank you very much.

[@stepbystepscience]

Thanks for your comment, it's much appreciated!

[@blairmoorer8460]

I really appreciated this clarification, especially with introducing the corrective lenses! Thank you so much!

[@stepbystepscience]

Thanks for the comment.

[@kristinedemark4828]

Thank you! This really helped my classes understand this concept!

[@levonderbrinkley3804]

I loved this! I am an educated 64 years old and have worn glasses most of my life, but did not know this information.

[@stepbystepscience]

So glad you learned something! Thanks for your comment.

[@shamimnaz1835]

I was very much confused with the concept of near and far sightedness but you easily clear it Thankss.

[@stepbystepscience]

Awesome and thanks for the comment. You can see a complete listing of my videos at www.stepbystepscience.com

[@mr.perfect8839]

Amazing video...helped me a lot for my preparation

[@moretomedicine]

Simple, to the point, perfect! Exactly what i needed

[@stepbystepscience]

Glad to hear that and thanks for watching!

[@13thChip]

Can the diverging lens used to correct myopia cause eye muscles to strain more when reading at short distance?
I am short sighted and started recently experiencing a problem where when I wear glasses to see far objects, i cant focus on small letters while reading. I have to look outside my lens or take the glasses off and the small letters become clear even at short distances. Do i have hyperopia and myopia as well?
This is a recent experience and I never faced this problem while wearing glasses to correct my short sight. I have been wearing glasses to correct short sight since I was 8 years old and now I am 43.

[@alexisprice8574]

Thank you for making that very clear! That helps a lot for my anatomy test !

[@stepbystepscience]

Hope the test goes well. You can see a listing of all my videos a my website, www.stepbystepscience.com

[@umarecol81]

i have a question about a person with myopia : so they put concave lenses so they can get a clear vision. But what happens if the eye accumulates WITHOUT a concave lens when the object is near? (I know that the eye without the accommodation with an object that is near makes a clear vision, but when the eye accomodates does it make the vision worse? (because there is more breaking of light?)

[@hbsbb1]

Terrific video! Really clear description! Thanks

[@avamk9580]

your videos help me so much!! thank u x millions

[@stepbystepscience]

Great they are helpful for you and thanks for commenting.

[@beaver_squeezer4226]

Very well explanation & great video, wished my optician manger was you.

[@artpop4976]

My eyegrade is 2.50l and 1.50R. why does my eyes are so sensitive with light?

[@kartikPanwar07]

Your explanation was really nice and easy to understand gave me a lot of help for my exams 😊

[@stepbystepscience]

Hope the exams go well, thanks for watching and commenting.

[@liliadiaz9338]

Awesome video! Straight forward and easy to understand. Mneumonic to help remember: Need Medical Doctors For Healthy Children. (Nearsightedness is the same and Myopia, can correct with Diverging lens. Farsightedness is the same as Hyperopia, can correct with Converging lens.)

[@stepbystepscience]

Awesome way to remember near and far sighted, will use with my students this year.

[@gnarleypunkroker5]

out of curiosity on the image you have - could you be so near sighted that a converging lense would spread the light rays out so far they dont contact the lense bit of your eye, therefore making them not work to solve the issue?

[@stepbystepscience]

Do you mean a diverging lens??? If they are the wrong strength they they do not work. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@galaxyvlogs6354]

im nearsighed

[@kylaxo3937]

Same

[@thegoldensea_]

Galaxy vlogs yeah, me too. Sucks to have unhealthy eyes. My brother were lucky to be the only family members to don't wear glasses

[@lizabell9461]

Me too but very minor but I’m still getting glasses because I have trouble seeing captions on a T.V

[@latewayzx8015]

Same

[@RodyToRick]

If you're nearsighted, your eyes are still healthy, unless if you have diabetes or cancer.

[@maeEllis-yx9tj]

You explained this topic so well. Thank you

[@stepbystepscience]

You're very welcome!

[@imad7995]

Great and clear video ! Would love if you could make a video on "Electromagnetic Spectrum" too, whenever you find the time !

[@boakyeduan563]

Great explanation and animation!!

[@stepbystepscience]

Glad you liked it and thanks for the comment!

[@bereruter0]

you say the muscles around your lens can change, so you can naturally cure it then? if you train that muscle?

[@rajsoniminde9578]

Beautiful video it was crisp and clear to understand.

[@stepbystepscience]

Thanks for the comment. you can see a listing of all my videos at www.stepbystepscience.com.

[@davevargo6256]

Thanks so much for your explanation. I'm taking a bunch of donated eyeglasses to Honduras this fall. We will fit them to folks in fairly primitive situations. The info you provided helps

[@stepbystepscience]

Sounds like a great trip, hope it goes well.

[@genesisnunez2928]

Dave Vargo WOW... I'm From Honduras

[@JoseTorres-fy2nb]

Really helped me understand eye condition more clearly! I

[@mosirapilivi]

Awesome straightforward explanation!

[@stepbystepscience]

Thank you very much for the positive comment.

[@thearatha2767]

simple explaination and easy to understand. Thank you very much.

[@stepbystepscience]

Glad you liked it and thanks for commenting.

[@loganallred4589]

I enjoyed this video, it was helpful. Thank you.

[@calciclasses]

Superb explanation sir... Thanks a lot

[@stepbystepscience]

You are very welcome.

[@maajidthanksforyourhelpqee1072]

Hi I'm near sighted, and I don't want to wear a glasses, please can you tell me something better glasses thanks.

[@kwabenaboakye1367]

Thank you for the video! Helped me so so much...

[@zakarovlina]

You are such a good teacher

[@stepbystepscience]

+Moussa Harb That is such a nice comment. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@loreaver3882]

Step-by-Step Science yeah this guy reminds me of one of my teachers

[@zaramahajan8603]

Thank you so much! You are a lifesaver.

[@stepbystepscience]

Glad to be of help!

[@indianchannel3699]

Its very Helpful thanks for making this video now I understand more about eyes.

[@stepbystepscience]

They are very interesting! Thanks for commenting!

[@m320d3]

Thank you 🙏🏻 the video helped me so much!!!

[@stepbystepscience]

Thanks for watching and commenting

[@NS-ej9jw]

Is there any way u can fix near sidedness

[@stepbystepscience]

Glasses or many there are some eye exercises that you can do. You can see a complete listing of my videos at www.stepbystepscience.com.

[@maya4660]

@@stepbystepscience did he way I didnt hear him that a goooood answer

[@ezra2180]

The best explanation

[@elizabethnguyen7677]

Very helpful video, thank you.

[@stepbystepscience]

Step-by-Step Science
• 1 second ago
You are very welcome, thanks for commenting.

[@prasannakapu3018]

Well explained, thank you

[@justalittletoxik7383]

this actualy helped me ALOT with a science exam i have soon thank you

[@stepbystepscience]

+Eliam Tice Great, I hope the exam goes well.
You can see a listing of all my videos at my website, www.stepbystepscience.com

[@anthonyl9722]

Can you naturally change your sight type? Im not even sure what I have lol

[@Trap_Or_Die_84]

My doctor told me I may need plus ones so does that make me farsighted or nearsighted?

[@calciclasses]

Hypermetropia

[@jakleenyaqoob5515]

great explanation. is there a way to fix nearsighted and far sighted without wearing glasses. i'm nearsighted and everytime I wear glasses, it makes my vision blurry :/

[@Crazybrony-bi6zg]

Well, are the glasses correctly prescribed?

[@dmlx4209]

I’m nearsighted, whenever Im gaming I cant see far away and get get a lot of pain from straining/squinting hard to try and see who’s there.

[@stepbystepscience]

Bummer

[@purushothamreddy1206]

That's good ur explanation is marvellous

[@marilup9657]

Thank you!!! Easy way to understand

[@lindseylauer3128]

Get explanation. Thank you for making it clear and simple

[@stepbystepscience]

You are welcome! Thanks for the comment.

[@BlueUKLouis]

Beautiful, thank you!

[@stepbystepscience]

You're welcome!

[@priyalinu2721]

Very good explanation sir 👍👍

[@Iftikharali]

very good explanation. Thank you.

[@stepbystepscience]

Thank you for watching and commenting.

[@preetidwivedi6904]

It's very useful..thankyu sir

[@Shawnblue]

I like your presentation. I have myopia.

[@yeshabie1122]

I can only see the things if near but i cant see or read anything if far ??

[@stepbystepscience]

very interesting.

[@sanariax]

Just loved the lecture, ❤

[@stepbystepscience]

Very nice, thanks for letting me know!

[@gabby5211]

this will help me so much in gsat thank you

[@ravishmirividahara8000]

Its was really good and can you teach how to correct that sightnesses by drawing line diagrams

[@stepbystepscience]

I believe that is in the video.

[@nandithaiyer5765]

Very nice explanation sir

[@stepbystepscience]

Thank you for the positive comment.

[@ouss991]

great explanation

[@maimoonamumtaz6376]

Thank you... It was very helpful 👍👍👍

[@trevorsmallwood6899]

thx it really helped do my homework :-)

[@sangeethstanly7618]

Its very clear explanation sir.thanku.

[@stepbystepscience]

You're most welcome.

[@vikasputla]

Thanks for the video!... It helped me.

[@stepbystepscience]

Thanks for letting me know

[@ednaooi3923]

Thank you :) It was very helpful :)

[@monasawant2697]

Thanks it helps me to learn more

[@nathanelleeveillard7159]

I'm nearsighted.

[@stepbystepscience]

Me too!

[@bananaman7646]

Nathanelle Eveillard same

[@belchapantoja8617]

Same here

[@nathanrumpf5660]

Great video. Thanks!

[@stepbystepscience]

You are very welcome!

[@xprepared9625]

Really helpful coach

[@dr.kallolchakraborty]

that's very nice xplanation

[@sunshinealtheabelizar872]

Thank you so much this help me alot

[@stepbystepscience]

You're welcome!

[@muhammadishaq1596]

nice work ...thanks

[@stepbystepscience]

You are very welcome, thanks for the comment.

[@cocoarecords]

Enjoyed it thanks man !

[@stepbystepscience]

cocoarecords Great just loaded it up this morning! Thanks for the comment!

[@khosrosoltani3758]

Thank you dear...

[@ahmedalblooshi4826]

Amazing explanation 👍👏

[@stepbystepscience]

Thank you very much.

[@kumarikumari4766]

Thanks a lot 🌺

[@stepbystepscience]

You are very welcome.

[@AmitKumar-lj4dm]

What if person having both. But he can see things clearly in between.

[@stepbystepscience]

I know someone who has both, they can see out of both yes but their brain only uses the information from one eye.

[@shinygengar2115]

Both?

[@latre705]

Hey! Really helpful video, but my question is:
What develops Myopia? My mom always blames me for it for playing videogames and gets mad at me which sucks. I just really wanna know a real answer and explanation to that too to maybe prove her wrong in that. She might have a point but i have no hope right now.

[@stepbystepscience]

I am not a doctor so I can not say what caused your myopia, but I do not think that playing video games causes myopia. GTA!

[@yammilevargas430]

HOLYSHIT. I FINALLY FUCKING GOT THIS! WHY DIDN'T I FIND THIS VIDEO SOONER?

[@Sam-gt8qy]

thank you!!!

[@Kem9s]

Thank you 🙏🏻

[@stepbystepscience]

You’re welcome !

[@itsmebeyonder]

I have astigmatism in both eyes but only my left eye has nearsightedness. I also develop a condition called lazy eye.

[@stepbystepscience]

My wife has a lazy eye also.

[@itsmebeyonder]

@@stepbystepscience oh. Lazy eyes can be extra annoying, even by wearing an eyeglass doesn't fix it.

[@carl108]

Can't like this enough!

[@stepbystepscience]

Did you subscribe, that would go a long way.

[@LearningWithShah]

Very good 👍

[@stepbystepscience]

Thank you 👍

[@SACHINSTRUCTURE123]

thanks it helped me ☺️

[@AlcaraMariizz]

very helpful!

[@stepbystepscience]

Thanks for watching and commenting.

[@meetan-]

I am 70... Now only I understood these terms... Thanks

[@stepbystepscience]

You are welcome.....Better now then never!

[@shabnamkavakeb648]

thank you very much

[@stepbystepscience]

You are very welcome.

[@professorneila2941]

Amazing