Ophthalmology - Retinoscopy (Part 1/2)

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  • Опубликовано: 9 фев 2025
  • www.ophthobook.com
    This is the first half lecture on retinoscopy ... the technique we use to check prescription in children. This is a hard skill to teach, so hopefully you'll find these animations useful. You can find more lectures like this at ophthobook.com

Комментарии • 178

  • @christianmckinney6136
    @christianmckinney6136 7 лет назад +202

    Did not know that Tom Cruise was an eye doctor but excellent video all around!

  • @fascinatinghumanbody9810
    @fascinatinghumanbody9810 7 лет назад +32

    O my God...whr r u..ur students are reallly blessed to hav u!!

    • @optometrygoals5877
      @optometrygoals5877 5 лет назад

      Watch our retinscopy and other optometry related videos for more informat.

  • @chariswalton9635
    @chariswalton9635 5 лет назад +13

    Thank you SO much for this video! I’m a COA working towards my COT & this was incredibly helpful!

  • @srinivas3241
    @srinivas3241 9 лет назад +3

    Dr. Tim Root Ur lectures are best and easy way to Understand in Ophthal.

  • @milisharma920
    @milisharma920 Год назад +1

    this video was so helpful & the way he preferred to do multiple examples w negative & positive power values was so helpful in clearing any doubts about the subtraction that may have been!

  • @Dashulkin
    @Dashulkin 4 года назад +4

    Thank you so much for your work! You are a superb educator! From an Optometrist

  • @riverremis69
    @riverremis69 4 года назад +2

    I’m currently a first year in optometry school, & were using gill strand eye. Y professors, tho they’re sweet, confused me so much. Thank you for clarifying the confusion of this simple skill

  • @launchbreak
    @launchbreak Год назад

    I can say that as a med student, I find this lecture to be very good! Thank you a lot!

  • @ohfifi
    @ohfifi 11 лет назад +11

    Awesome! My lecturer just had all words and expected us to visualize but the whole lecture was a disaster cos I didn't really understand what is happening. This video is very concise and understandable! Thanks for the images and video

  • @echafaud
    @echafaud 12 лет назад +2

    Thank you Mr. Cruise. A very nice video and a very thorough explanation. I just wanted to say I'm happy you developed such a passionate interest for an actual science like medicine. I was sure that little affair with the scientologists' church was just a passing fancy. Good for you.

  • @jaykumarpresswala5621
    @jaykumarpresswala5621 3 года назад

    It was best video i hv seen,straight to the point and explained very well
    Thank u very much

  • @Ottehgstar
    @Ottehgstar 8 лет назад +121

    2 hours reading my college notes and it's all nonsense. 2 minutes watching this video and it's all seeming so obvious.

    • @optometrygoals5877
      @optometrygoals5877 5 лет назад

      Watch our retinscopy and other optometry related videos for more informat.

  • @nehapatel8059
    @nehapatel8059 Год назад

    Thank you so much for this video … I am a medical student and could never understand retinoscopy untill now.

  • @mchow1955
    @mchow1955 Год назад

    This is the best learning tool I have had to learn retinoscopy. Thank you very very much for making this so readily available.

  • @RaneemSab
    @RaneemSab 2 года назад

    There's no better illustrating video than that... excellent 👏

  • @kerenjimenez4077
    @kerenjimenez4077 2 года назад

    Wowww great video I’m a future optometry student and the eye doctor I’m working with let us play with the retinoscope and this video really explained the details very well

  • @int3rc3pter
    @int3rc3pter 7 лет назад

    very helpful video thank you soo much.3hr lecture i left confused and not very optimistic for my test .. now i understand and feel a little more confident with how this works.

  • @keshav5651
    @keshav5651 5 лет назад +1

    The best explanation by far !! Thank you so much .

  • @emilybodkin7927
    @emilybodkin7927 9 лет назад +2

    Thank you so much for these videos im finally understanding this skill was so frustrated before viewing thank you so much for ur wonderful videos!!!

  • @annegreen90
    @annegreen90 14 лет назад +6

    U ARE GIFTED WITH GREAT TEACHING SKILLS!! Made a medico's life so much easier!! Thank u!! :)

  • @ollur2257
    @ollur2257 5 лет назад

    Thank you so much Doctor for sharing your knowledge..... You have very good skills at teaching....... Greetings from Algeria

  • @n.mahmoud3937
    @n.mahmoud3937 5 лет назад

    You are really an excellent professor...
    All of your lectures are amazing

    • @n.mahmoud3937
      @n.mahmoud3937 5 лет назад

      Do you have any phacoemulsification trainig courses.. if you have ,inform us .. i will enjoy joining you dear prof.

  • @studdaegang7972
    @studdaegang7972 3 года назад

    I was so confused when I read my textbook. You made it seem like a cakewalk. WOW

  • @RahulKumar-s1x2x
    @RahulKumar-s1x2x Год назад +1

    Thanks sir ❤❤❤

  • @mar7956
    @mar7956 4 года назад +1

    all make sense !! like your videos

  • @akash_sky384
    @akash_sky384 7 лет назад

    Your videos are very helpful, interesting, and your teaching style is awesome. I Love your videos keep making, always waiting for your videos

  • @dr.thomascasey8246
    @dr.thomascasey8246 6 лет назад +1

    WELL DONE DR. .....YOUR BRIGHT & YOUR BRIEF --- TOM CASEY O.D.

  • @emehdoris8882
    @emehdoris8882 4 года назад +1

    Thank you very much for this video
    I can’t believe I ve been wasting my time trying to understand my textbooks 😫😫

  • @hernaldoamador07
    @hernaldoamador07 3 месяца назад

    Excelente video para entender como se hace una retinoscopía.

  • @Samraaa5
    @Samraaa5 Год назад

    Beautifuly explained👍👍

  • @basmahelal6649
    @basmahelal6649 7 лет назад

    very good explanation with the animation...
    Good job Dr

  • @ajnasalic.p5359
    @ajnasalic.p5359 11 лет назад +1

    That was an awesome presentation. I was really confused with this instrument .U had made it very easy ..thanks a lot

  • @fkeopfkeop
    @fkeopfkeop 12 лет назад +9

    To get comfortable in retinoscopy you'll need to do it everyday in about 7 years.

  • @dipmishakumari9718
    @dipmishakumari9718 5 лет назад

    Thank you so much Dr sharing for this video very simple to understand how can do retinoscopy

  • @otissumnerbrown
    @otissumnerbrown 14 лет назад

    What a wonderful presentation. I am an "Engineer" and I always wondered how this was done -- EXACTLY. Thanks, Otis

  • @michaelehailu1840
    @michaelehailu1840 5 лет назад

    excellent lectures & easy to understand

  • @RendaniNetshirungulu
    @RendaniNetshirungulu 3 года назад

    You have simplified it for me👌🏿👌🏿

  • @principal53
    @principal53 10 лет назад +1

    Excellent, always wanted to know how it was measured.
    Thanks a lot

    • @optometrygoals5877
      @optometrygoals5877 5 лет назад

      Watch our retinscopy and other optometry related videos for more informat.

  • @teachnolo2254
    @teachnolo2254 2 года назад

    Thank you so much ❤️ it helped me a lot

  • @lalitakumari453
    @lalitakumari453 4 года назад

    Thank you so much sir for making easy to understanding retinoscopy👌👌

  • @shakebaamiri7531
    @shakebaamiri7531 4 месяца назад

    Please make a video about astigmatism. Thanks

  • @mahfa7513
    @mahfa7513 3 года назад

    thanks for this video very helpfull I was very confuse how can use it . Thanks god bless you

  • @harithaviswan7175
    @harithaviswan7175 6 лет назад

    Excellent presentation

  • @anilkrishna7413
    @anilkrishna7413 6 лет назад +2

    Thank you so much, i was all tangled with this thing and your video helped me to clear it up just like that.

  • @tbg1199
    @tbg1199 4 года назад

    Excellent. Thank you very much.🤗🤗🤗🤗🤗

  • @sahelisarkar4516
    @sahelisarkar4516 6 лет назад +3

    Please share a vdo of how to find the cyl axis

  • @amandawen4158
    @amandawen4158 8 лет назад

    love you so much!!! Great lectures ever! Waiting for your new lectures!

  • @sixrodas
    @sixrodas 7 лет назад

    This is an awesome lecture, but how does it change when you don't have positive cylinders? I'm studying Ophthalmology in Guatemala and here we only prescribe lens with negative cylinders. Thank you very much for the lecture, I've found all lectures very useful. Keep making learning fun.

  • @YourEyeDocAimy
    @YourEyeDocAimy 3 года назад

    u said in the video that optometrists do it differently. may I know what do they actually do differently? I'm just curious to know the difference between both the doc n optometrist's practice in retino

  • @dellachow3124
    @dellachow3124 3 месяца назад

    so good 👍

  • @TimRoot-dotcom
    @TimRoot-dotcom  13 лет назад +1

    @fofocientos
    Agreed ... but I would argue that your description is the same thing as described in this video. It's ALWAYS about vergence of light ... whether we are describing converging light (as in this lecture) or coupled optical systems (like you are describing). I prefer the simpler explanation, and try to avoid discussing real/inverted images, far points, and terms like puntum remotum because they don't help someone learn retinoscopy. Appreciate the input.

  • @2mbilal
    @2mbilal 13 лет назад

    @MarkDavidKnight for a 66 cm working distance its subtract 1.50 DS (1/66cm =1/0.66m=1.50)

  • @sanpras1647
    @sanpras1647 3 года назад

    VERY HELPFUL

  • @calm1423
    @calm1423 6 лет назад

    Thanks for the upload
    Gratitude from India🙏🏻🙏🏻

  • @polarstar75
    @polarstar75 8 лет назад

    Pretty Refreshing...and to the point.. Thanks Tim :)

  • @otissumnerbrown
    @otissumnerbrown 13 лет назад +1

    A real problem with children is that you must have the child "look in the distance". If the child looks close (accommodation for 20 inches) you will get a measurement that is 2 diopters more plus than in should be. With adults you can instruct them to "look in the distance", and that will provide an accurate measurement.

  • @user879p
    @user879p 8 лет назад

    what a brilliant lecture

  • @Fernando-jz1zi
    @Fernando-jz1zi 3 года назад

    Thanks for this video, really useful. I'd like to make a cardboard model just like yours. Could you please tell how you did it?

  • @annieanne9086
    @annieanne9086 10 лет назад

    Love your videos! Thanks for sharing you knowledge!

  • @cristobalmoctezuma3818
    @cristobalmoctezuma3818 2 года назад

    Hi! one question, how should the light be ? thin or thick?
    thanks!

  • @syllamalvi2752
    @syllamalvi2752 9 лет назад

    very informative, and easy to understand

  • @marysims2130
    @marysims2130 11 лет назад

    thank you very for sharing the great video.. very good job doc!

  • @iamsanjaysaini
    @iamsanjaysaini 5 лет назад

    Dear sir, can you please tell which type of retinoscope using in this video

  • @rameeshas8120
    @rameeshas8120 3 года назад

    THANK YOU DOCTOR 💟

  • @MeritCullen
    @MeritCullen 13 лет назад

    This is excellent! Such a good explanation :D

  • @abans5353
    @abans5353 5 лет назад

    Great video!!!

  • @د.أحمد-ش1ج
    @د.أحمد-ش1ج 4 года назад

    thank you so much doctor 💜

  • @pahadiexploreruk1235
    @pahadiexploreruk1235 6 лет назад +4

    Sir i have problem with neutralise the cylindrical power..
    Speacilly when it is oblique..
    Please give a trick for it.

    • @optometrygoals5877
      @optometrygoals5877 5 лет назад

      We explain about hw to neutralize cyl. Oblique axis watch our retinoscopy part 2 video for more info.

  • @mujeebmoheb4409
    @mujeebmoheb4409 8 лет назад

    Dear tim root! I have confusion in this topic,
    As i know when we want to neutralize a plus power spectacle we put a minus on it and vise versa so in retinoscopey it is something different when we find a with motion we put plus power to neutralize...? 🤔

  • @nandannath2338
    @nandannath2338 6 лет назад +2

    Thank u so so much sir ....finally i got the idea...

    • @optometrygoals5877
      @optometrygoals5877 5 лет назад

      Watch our retinscopy and other optometry related videos for more informat.

  • @milindvrs4954
    @milindvrs4954 8 лет назад

    too good you made it lot easier thank you

  • @Panwarcraft
    @Panwarcraft 7 лет назад +8

    Could you explain some examples of negative cylinder power? There is no example for that in your videos (1or 2).
    Please reply or record and upload a new video !
    Thanks in advance

  • @TaniyaMiladeth
    @TaniyaMiladeth Год назад

    very helpful ,thanks lot

  • @sanjusinghsks2434
    @sanjusinghsks2434 8 лет назад

    Its v.v.very usefull. thanks sir.

  • @gytistijunelis3653
    @gytistijunelis3653 3 года назад

    I think there is just one mistake, when he founds minus sphere, he should ad +1,50 in correction, not - 1,50

  • @mercadotecnico
    @mercadotecnico 13 лет назад

    Thanks a lot for a wonderful xplanation.

  • @PradeepSingh-kg1id
    @PradeepSingh-kg1id 9 лет назад

    i am optometrist.your video good

  • @ophthojooeileyecirclehisha4917

    Thank you so much

  • @preyabhujel7022
    @preyabhujel7022 5 лет назад

    Very useful 👋 thank you so much

  • @Studying-s2g
    @Studying-s2g 4 года назад

    Thank you

  • @duaakhaldun1920
    @duaakhaldun1920 5 лет назад

    Thank you so much doctor 😍😍

  • @nadiamahnegar270
    @nadiamahnegar270 Год назад

    nice explain

  • @wiseguyli
    @wiseguyli 9 лет назад

    Really nice video, Thanks!

  • @uthmanuthmanuthmanuthman9397
    @uthmanuthmanuthmanuthman9397 6 лет назад

    u are vera level sir..

  • @AnatoliyShevchyk
    @AnatoliyShevchyk 11 лет назад

    Thank you. It is very cool video) I almost understood the retinoscopy)

  • @nileshgaikwad2156
    @nileshgaikwad2156 3 года назад

    HI TIM SIR.......PLEASE ADD SOME MORE VIDEOS
    LOVE FROM INDIA......

  • @harshadkadam949
    @harshadkadam949 6 лет назад

    Good afternoon sir ,I have a question , why minus working distance for example 1.50,2.00,1.75 into retinoscopy

  • @القلمالمقدس
    @القلمالمقدس 4 года назад

    Dear mr
    I'm want to take your video and make a caption in Arabic
    I wish you accept
    With my best wishes for a good future
    Mr. Ahmed Riyad

  • @MarkDavidKnight
    @MarkDavidKnight 13 лет назад

    Hi Dr. Thanks for the lectures, but isn't working distance 2.50 and not 1.50? Thanks Dr

  • @anashwarajacob6615
    @anashwarajacob6615 4 года назад

    I have a doubt though, why is with movement seen even with emmetropia? I understood it with hypermetropia.

  • @MrJIJO7
    @MrJIJO7 5 лет назад

    That's awesome.. 👌🏻

  • @Market17
    @Market17 8 лет назад

    great video... I have just one question... Can I use an ophtalmoscope instead of retinoscope? What's the difference between ophtalmoscope and retinoscope?

    • @Market17
      @Market17 8 лет назад

      thanks, now I understand :)

    • @mikexue5104
      @mikexue5104 6 лет назад

      thanks very much

  • @faritas15
    @faritas15 9 месяцев назад

    thank you!!

  • @joshuawilliams7602
    @joshuawilliams7602 7 лет назад

    Would like to seek permission to borrow clips (edited down into short segments or .gif files on my end) for my website. Properly sourced and linked to this main video of course. Couldn't find any other way to appropriately ask but through this comment section...

    • @TimRoot-dotcom
      @TimRoot-dotcom  7 лет назад

      That's fine as long as it's linked to original and not used in a disparaging way or in a paid product. Thanks.

  • @DebRipAdams
    @DebRipAdams 4 года назад

    Wonderful! Thank you!

  • @balocmai
    @balocmai 12 лет назад

    Amazing video. Thanks!

  • @muahmedvlogs
    @muahmedvlogs 2 года назад

    Thx from Bangladesh

  • @sapsarii1111
    @sapsarii1111 Год назад

    THANK YOU!!!

  • @pareshanatmadelhi
    @pareshanatmadelhi 11 лет назад

    very good

  • @AIIMSONIANSETHI
    @AIIMSONIANSETHI 12 лет назад

    Thanks a lot for your demo. Retinoscopy was impossible to visualize from the textbook in my final year med school .