Optometry 101 | Corrective Optics for Myopic and Hyperopic Vision | Doc Physics

  Рет қаралды 71,993

Doc Schuster

Doc Schuster

11 жыл бұрын

I make a sloppy attempt at explaining why people wear glasses. Also, you might like LASIK. I did.

Пікірлер: 64
@pablovignolo637
@pablovignolo637 2 жыл бұрын
these are the funniest and best explained physics classes i've ever seen. thank you
@ctmaria2367
@ctmaria2367 8 жыл бұрын
you're actually explaining better than my teacher.
@anuragsinh4443
@anuragsinh4443 6 жыл бұрын
Cata Yo ryt 😂
@just_golden1085
@just_golden1085 Жыл бұрын
this man needs more appreciation.. these videos are so helpful and I love the energy
@nestorenriquez3284
@nestorenriquez3284 5 жыл бұрын
The lens (which is not) you were referring in front of the eye is a cornea, and it doesn't change its shape. The crystalline lens with the help of ciliary muscles is responsible for focusing the image on the retina through accommodation.
@kaycicastillo6390
@kaycicastillo6390 4 жыл бұрын
I learned so much and you were hilarious through it.
@DocSchuster
@DocSchuster 11 жыл бұрын
That's high praise! You're welcome and thank YOU!
@katiebruce6164
@katiebruce6164 8 жыл бұрын
PLEASE do a video on the physics of laser eye surgery. By Friday would be recommended bahaha
@normamarie1413
@normamarie1413 9 жыл бұрын
You are hilarious! I now have a crush on your hands.
@Stereo-edits69
@Stereo-edits69 6 жыл бұрын
Norma Marie same😙
@matteobrunello8067
@matteobrunello8067 8 жыл бұрын
wonderful video, very helpful!
@swaroop3235
@swaroop3235 7 жыл бұрын
thankyou so much dude enjoyed learning!!
@gustavodotgoretkin
@gustavodotgoretkin 8 жыл бұрын
The ray tracing starting at 6:31 is wrong. A point in the image is smeared across a section of the focus plane.
@yassinet.benchekroun5087
@yassinet.benchekroun5087 7 жыл бұрын
nice lense of humour !!
@gravelor78
@gravelor78 2 жыл бұрын
oh my god..
@JJoverlee1
@JJoverlee1 11 жыл бұрын
Can you please do a calculation!!
@CoolGuyWithFastCar
@CoolGuyWithFastCar 11 жыл бұрын
"The true freaks are the people whose eyes focus too much." LOL!
@JohnnyGarman
@JohnnyGarman 8 жыл бұрын
What if the upside down green I see is the right side up blue you see......?
@JesusHernandez-cj6jw
@JesusHernandez-cj6jw 4 жыл бұрын
Damn bro.. I just came here to learn.. and your comment about "when you were thinking about why things weren't as upside down as they used to" really fucked me up to the point of existential crisis..
@anuragsinh4443
@anuragsinh4443 6 жыл бұрын
awesome 💖💖
@biancatang9229
@biancatang9229 9 жыл бұрын
Omg....you are so good!
@aida545
@aida545 6 жыл бұрын
Had lasik 8 years ago and now my eyes are getting myopic again. Any recommendations? They don’t recommend re doing surgery.
@DocSchuster
@DocSchuster 6 жыл бұрын
Oh, NO! I am so sorry to hear that. I wish I had some good advice, but I really know nothing about the eye, biologically. I could very well be in your shoes in a couple years, and I'm not sure what I'd do! Good luck!
@isnarmori5974
@isnarmori5974 8 жыл бұрын
Huh, I always thought Shuster was pronounces as in hunt.
@user-ffkindiscard
@user-ffkindiscard 15 күн бұрын
Some evil doer magnified sound in Albuquerque........😊
@seshachary5580
@seshachary5580 5 жыл бұрын
THANK YOU REGARDS
@AaliaRuby
@AaliaRuby 9 жыл бұрын
i wish i could triple like this
@pishoymikhail5124
@pishoymikhail5124 8 жыл бұрын
Doesn't your eye size stay the your whole life?
@agentsniperyt3551
@agentsniperyt3551 8 жыл бұрын
So when ur myopic, does that necessarily mean that you are near-sighted?
@kosiokoye2384
@kosiokoye2384 7 жыл бұрын
AgentSniperYT yeah
@rosapinheiro8892
@rosapinheiro8892 4 жыл бұрын
The lord of the flies referece :-)
@mihirkavishwar6393
@mihirkavishwar6393 9 жыл бұрын
Using biconcave lens to treat myopia seems theoretically correct but when I actually observe my specs, the lens seems something like convexo-concave but definitely not biconcave.... How do these lenses (not the biconcave/biconcave ones) work?
@DocSchuster
@DocSchuster 9 жыл бұрын
Mihir Kavishwar Similar to smooth-transition bifocals? I think they just ease the transition between the two lens's curvatures so you don't get a line. I would need to get my hands on such a lens and play around a bit. Cool!
@mihirkavishwar6393
@mihirkavishwar6393 9 жыл бұрын
Whoa I don't use bifocals I am still a teen!!.... I meant one side covex other concave. In your next video you drew the shape of your specs, something like- (( except that the inner side is more curved..... Transition bifocals definitely seem cool though :D
@DocSchuster
@DocSchuster 9 жыл бұрын
Mihir Kavishwar Ha! At any rate, I would imagine that the vertical focal length is different from the horizontal focal length.
@alejandrotorres8134
@alejandrotorres8134 7 жыл бұрын
Optometrist here, the type of lens most people use nowadays are called menisscus, its bascally a convex-concave lens, where if you are myope the concave part of the lens has more refractive power than the convex part, and viceversa if you are hyperope. Biconvex and biconcave lens are used in cases where the pacient has a really big refractive problem (something around -+ 10 dioptres), but nowadays we use conctacts instead of big heavy eyes-changing size lenses (sorry for bad english)
@scuzum2u
@scuzum2u 9 жыл бұрын
I could smell my eye melting. LASIK.
@johnplink
@johnplink 7 жыл бұрын
We become more myopic when we use distance glasses or contact lenses for extended periods of close work. Don't use distance glasses or contact lenses for close work. Use reading glasses over your contacts for close work.
@blockbusterbpl9991
@blockbusterbpl9991 8 жыл бұрын
Mabye your eye is green, which in the case of Jacksepticeye, is true.
@enoch7thadam1st2
@enoch7thadam1st2 5 жыл бұрын
But it also mean that you can train your eye?
@arctictimberwolf
@arctictimberwolf Жыл бұрын
Only a Qualif-eye'd Professional can properly educate your eyeball organ, you know Music teachers also teach Organ so ya might wanna consult one of them Organ Training. It is true that you can train your Organs tho ya know like your Kid Knee Organs, you trained those and now you don't wet your Pants anymore. 😜
@marklu1453
@marklu1453 7 жыл бұрын
why aren't glasses for myopia concave on both sides?
@DocSchuster
@DocSchuster 7 жыл бұрын
Good question. The same correction can be achieved by being flat or even convex on the front side and increasing the concavity of the back side. This fits the human face much more nicely!
@roberthunter4329
@roberthunter4329 6 жыл бұрын
No, way In Davies joeys I am going to get laser eye done! No! Thank you! Check please! By the way your very helpful :) haha
@katiebruce6164
@katiebruce6164 8 жыл бұрын
"The problem is, you can't start a fire with this" lol
@detonator_1526
@detonator_1526 5 жыл бұрын
I’m 14 and I’m trying my hardest to become an optometrist
@3mrch
@3mrch 7 жыл бұрын
"Your pathetic eye" that was hilarious!! xD xD
@JGunlimited
@JGunlimited 8 жыл бұрын
Myth or fact, does continuous wearing of eye glasses weaken your vision over time?(Discounting the effects of aging on eyesight).
@DocSchuster
@DocSchuster 8 жыл бұрын
+JG Oooh - I have heard about some people who believe that, but the studies that indicate it have been largely discredited.
@JGunlimited
@JGunlimited 8 жыл бұрын
Ah, I see! Thanks!
@FunkyMonk_96
@FunkyMonk_96 2 жыл бұрын
My eyesight has gotten worse and worse since I started wearing them at like 15. Every time I go to the eye doctor my eyesight is worse
@JJoverlee1
@JJoverlee1 11 жыл бұрын
This guy is amazing haha
@rachelmiller3674
@rachelmiller3674 6 жыл бұрын
I am a licensed amateur optometrist!
@justinnemelka6740
@justinnemelka6740 6 жыл бұрын
You’re so dope. Lol
@dranorter
@dranorter 6 жыл бұрын
Well now I want instructions for measuring my cylindrical diopter too!
@saddleworn1676
@saddleworn1676 4 жыл бұрын
Scatterbrained, back-and-forth, non-methodical presentation. If you think this way and have a short attention span, you'll love this. If you are methodical and logical, run.
@anessaalrubaiawi5206
@anessaalrubaiawi5206 4 жыл бұрын
What about a pathetic brain? Any correction suggestions? i see you fairely active in this video, wishing i'd get the secret :D. Greetings of a lost student
@ayeshaqadir7286
@ayeshaqadir7286 4 жыл бұрын
9:54 😂😂😂😂😂😂😂
@roxannemua9350
@roxannemua9350 5 жыл бұрын
lol pathetic eye thanks alot '/// I have been wearing glasses since age 1 i have Accomodative Estoropia im extremely hyperopic +4.75 and +6.00 near point each eye and Im cursed with Astimgatism -2.50 cylinder asgitmatism horrible combination to be hyperopic and have extreme astigmatism :( Im also the only one in my family with this problem everyone else in my family has perfect 20 20 crystal clear vision. What about hyperopia can they get lasik surgery? According to my opthamologists and optometrists when i rant to them about my pathetic stupid eyes im STILL considered extremely fortunate and blessed that my vision is at least correctable. I would think a person with even the strongest glasses would not be able to see due to retina problems cataracts etc low vision aka legally blind now thats a pathetic eye.
@kosiokoye2384
@kosiokoye2384 7 жыл бұрын
my eyes are too small yet am myopic
@adityagrewal5425
@adityagrewal5425 4 жыл бұрын
if all objects are focused at the far point in myopia why do we see objects normally at same distance as they are .I am researching on this from an year , im ready to give out 50$ for the explaination .Any phds or opticians kindly help and be as technical as you can.
@rolandphilipgo1767
@rolandphilipgo1767 5 жыл бұрын
That they have myopia hahahaha
@LycanKnight2011
@LycanKnight2011 6 жыл бұрын
Odd but informative
@arctictimberwolf
@arctictimberwolf Жыл бұрын
I got a 7 cm Window 7 cm from my eye 🧐 You know what that means don't ya😲 Guess My Far Point🤔 😝 Yep you guessed it
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