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

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  • เผยแพร่เมื่อ 5 ก.ย. 2024

ความคิดเห็น • 64

  • @pablovignolo637
    @pablovignolo637 2 ปีที่แล้ว +8

    these are the funniest and best explained physics classes i've ever seen. thank you

  • @just_golden1085
    @just_golden1085 ปีที่แล้ว +6

    this man needs more appreciation.. these videos are so helpful and I love the energy

  • @ctmaria2367
    @ctmaria2367 8 ปีที่แล้ว +32

    you're actually explaining better than my teacher.

  • @nestorenriquez3284
    @nestorenriquez3284 5 ปีที่แล้ว +6

    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.

  • @normamarie1413
    @normamarie1413 9 ปีที่แล้ว +29

    You are hilarious! I now have a crush on your hands.

  • @kaycicastillo6390
    @kaycicastillo6390 5 ปีที่แล้ว +4

    I learned so much and you were hilarious through it.

  • @DocSchuster
    @DocSchuster  11 ปีที่แล้ว

    That's high praise! You're welcome and thank YOU!

  • @katiebruce6164
    @katiebruce6164 8 ปีที่แล้ว +6

    PLEASE do a video on the physics of laser eye surgery. By Friday would be recommended bahaha

  • @yassinet.benchekroun5087
    @yassinet.benchekroun5087 7 ปีที่แล้ว +16

    nice lense of humour !!

    • @gravelor78
      @gravelor78 2 ปีที่แล้ว +1

      oh my god..

  • @gustavodotgoretkin
    @gustavodotgoretkin 9 ปีที่แล้ว +3

    The ray tracing starting at 6:31 is wrong. A point in the image is smeared across a section of the focus plane.

  • @JesusHernandez-cj6jw
    @JesusHernandez-cj6jw 4 ปีที่แล้ว

    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..

  • @CoolGuyWithFastCar
    @CoolGuyWithFastCar 11 ปีที่แล้ว +4

    "The true freaks are the people whose eyes focus too much." LOL!

  • @JJoverlee1
    @JJoverlee1 11 ปีที่แล้ว +3

    Can you please do a calculation!!

  • @user-ffkindiscard
    @user-ffkindiscard หลายเดือนก่อน

    Some evil doer magnified sound in Albuquerque........😊

  • @matteobrunello8067
    @matteobrunello8067 8 ปีที่แล้ว +1

    wonderful video, very helpful!

  • @JohnnyGarman
    @JohnnyGarman 8 ปีที่แล้ว +1

    What if the upside down green I see is the right side up blue you see......?

  • @swaroop3235
    @swaroop3235 7 ปีที่แล้ว +1

    thankyou so much dude
    enjoyed learning!!

  • @johnplink
    @johnplink 7 ปีที่แล้ว

    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.

  • @saddleworn1676
    @saddleworn1676 4 ปีที่แล้ว

    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.

  • @biancatang9229
    @biancatang9229 9 ปีที่แล้ว +3

    Omg....you are so good!

  • @rachelmiller3674
    @rachelmiller3674 6 ปีที่แล้ว +7

    I am a licensed amateur optometrist!

  • @agentsniperyt3551
    @agentsniperyt3551 8 ปีที่แล้ว +1

    So when ur myopic, does that necessarily mean that you are near-sighted?

  • @rosapinheiro8892
    @rosapinheiro8892 4 ปีที่แล้ว

    The lord of the flies referece :-)

  • @mihirkavishwar6393
    @mihirkavishwar6393 9 ปีที่แล้ว

    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 ปีที่แล้ว

      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 ปีที่แล้ว

      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 ปีที่แล้ว +1

      Mihir Kavishwar Ha! At any rate, I would imagine that the vertical focal length is different from the horizontal focal length.

    • @alejandrotorres8134
      @alejandrotorres8134 7 ปีที่แล้ว +2

      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)

  • @isnarmori5974
    @isnarmori5974 8 ปีที่แล้ว

    Huh, I always thought Shuster was pronounces as in hunt.

  • @AaliaRuby
    @AaliaRuby 9 ปีที่แล้ว +9

    i wish i could triple like this

  • @scuzum2u
    @scuzum2u 9 ปีที่แล้ว +7

    I could smell my eye melting. LASIK.

  • @JGunlimited
    @JGunlimited 8 ปีที่แล้ว

    Myth or fact, does continuous wearing of eye glasses weaken your vision over time?(Discounting the effects of aging on eyesight).

    • @DocSchuster
      @DocSchuster  8 ปีที่แล้ว +6

      +JG Oooh - I have heard about some people who believe that, but the studies that indicate it have been largely discredited.

    • @JGunlimited
      @JGunlimited 8 ปีที่แล้ว +1

      Ah, I see! Thanks!

    • @FunkyMonk_96
      @FunkyMonk_96 2 ปีที่แล้ว

      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

  • @aida545
    @aida545 6 ปีที่แล้ว

    Had lasik 8 years ago and now my eyes are getting myopic again. Any recommendations? They don’t recommend re doing surgery.

  • @anuragsinh4443
    @anuragsinh4443 6 ปีที่แล้ว

    awesome 💖💖

  • @blockbusterbpl9991
    @blockbusterbpl9991 8 ปีที่แล้ว +5

    Mabye your eye is green, which in the case of Jacksepticeye, is true.

  • @enoch7thadam1st2
    @enoch7thadam1st2 5 ปีที่แล้ว

    But it also mean that you can train your eye?

    • @arctictimberwolf
      @arctictimberwolf ปีที่แล้ว

      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 ปีที่แล้ว

    why aren't glasses for myopia concave on both sides?

    • @DocSchuster
      @DocSchuster  7 ปีที่แล้ว +1

      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!

  • @pishoymikhail5124
    @pishoymikhail5124 8 ปีที่แล้ว

    Doesn't your eye size stay the your whole life?

  • @seshachary5580
    @seshachary5580 5 ปีที่แล้ว

    THANK YOU REGARDS

  • @3mrch
    @3mrch 7 ปีที่แล้ว +1

    "Your pathetic eye" that was hilarious!! xD xD

  • @roberthunter4329
    @roberthunter4329 6 ปีที่แล้ว +1

    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

  • @detonator_1526
    @detonator_1526 5 ปีที่แล้ว

    I’m 14 and I’m trying my hardest to become an optometrist

  • @katiebruce6164
    @katiebruce6164 8 ปีที่แล้ว +5

    "The problem is, you can't start a fire with this" lol

  • @adityagrewal5425
    @adityagrewal5425 4 ปีที่แล้ว

    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.

  • @dranorter
    @dranorter 6 ปีที่แล้ว

    Well now I want instructions for measuring my cylindrical diopter too!

  • @anessaalrubaiawi5206
    @anessaalrubaiawi5206 4 ปีที่แล้ว

    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

  • @roxannemua9350
    @roxannemua9350 5 ปีที่แล้ว

    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.

  • @justinnemelka6740
    @justinnemelka6740 6 ปีที่แล้ว

    You’re so dope. Lol

  • @JJoverlee1
    @JJoverlee1 11 ปีที่แล้ว +1

    This guy is amazing haha

  • @ayeshaqadir7286
    @ayeshaqadir7286 4 ปีที่แล้ว

    9:54 😂😂😂😂😂😂😂

  • @kosiokoye2384
    @kosiokoye2384 7 ปีที่แล้ว

    my eyes are too small yet am myopic

  • @arctictimberwolf
    @arctictimberwolf ปีที่แล้ว

    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

  • @rolandphilipgo1767
    @rolandphilipgo1767 5 ปีที่แล้ว

    That they have myopia hahahaha

  • @LycanKnight2011
    @LycanKnight2011 6 ปีที่แล้ว

    Odd but informative