Visual Field Defects and Optic Nerve Pathway | Homonymous Hemianopia Bitemporal Hemianopia NEW 2020

Learn the Optic Nerve Pathway and the Visual Field Defects that occur due to lesions in different parts of the Optic Nerve Pathway, including Homonymous Hemianopia, Bitemporal Hemianopia, Quadrantanopia, Macular Sparing and Macular Degeneration. What is the difference between the Temporal vs Nasal Retina? What defects are there in the visual fields if we have: optic nerve lesions, optic chiasm lesions, optic tract lesions or optic radiation lesions? What is macular sparing? What happens in the lateral geniculate nucleus? What is anopia?
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Video Timestamps:
0:00 Introduction
0:24 Optic Nerve Pathway Anatomy / Optic Chiasm / Optic Tract / Lateral Geniculate Nucleus / Optic Radiation
1:33 Temporal vs Nasal Retina
3:10 Optic Nerve Lesions - Anopia
3:32 Optic Chiasm Lesions - Bitemporal Hemianopia
3:56 Optic Tract Lesions - Homonymous Hemianopia
4:30 Optic Radiation Lesions - Quadrantanopia
5:04 What is the Macula?
5:32 Visual Cortex Lesions - Macular Sparing
6:23 Macular Degeneration
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Other Questions answered and video tags:
Quadrantanopia
Hemianopia
Visual Field Defects
Optic Nerve Lesions
Causes of Homonymous Hemianopia
Causes of Bitemporal Hemianopia
Lesions in visual pathway
Disclaimer: Please remember this video and all content from Rhesus Medicine is for educational and entertainment purposes only and is not a guide to diagnose or to treat any form of condition. The content is not to be used to guide clinical practice and is not medical advice. Please consult a healthcare professional for medical advice.
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Пікірлер: 94

  • @mennaagonafer403
    @mennaagonafer4037 ай бұрын

    In seven minutes you made it as clear as day! I've never understood this throughout my neurology attachment in medical school nor in my Uworld explanations. Thank you, than you thank you!!!🤗

  • @RhesusMedicine

    @RhesusMedicine

    4 ай бұрын

    You're welcome, happy it helped!

  • @taqwaalfaqeer1618
    @taqwaalfaqeer16183 жыл бұрын

    The best video I have ever seen about hemianopia and optic lesion❤️

  • @syedqurat6036
    @syedqurat60362 жыл бұрын

    I watched 3,4 vedios earlier to it, but this vedio cleared my whole concept about optic lesion !! Best vedio ever !

  • @lidee7436
    @lidee7436 Жыл бұрын

    Best video I've seen so far on this subject. Thank you!

  • @Retina_0101
    @Retina_0101 Жыл бұрын

    Clear and easily explained, it took me only 5 mints to understand , Thank you !

  • @francischukwugozie9686
    @francischukwugozie96863 жыл бұрын

    Seven minutes that worth it. So good.

  • @RhesusMedicine

    @RhesusMedicine

    3 жыл бұрын

    Thank you! Means a lot hearing people enjoyed the videos 😀

  • @sowndaryaravi5285
    @sowndaryaravi5285 Жыл бұрын

    Thank you so much.searched so many vedios ,finally I understood by ur vedio😁😁

  • @shivanidanda5687
    @shivanidanda56873 жыл бұрын

    Awesome explanation in just 7 minutes Tqsm🤩🤩

  • @Prakriti701
    @Prakriti701Ай бұрын

    My concepts are cleared for life, so nicely explained, thank you

  • @IrinaBanari-hh9hc
    @IrinaBanari-hh9hc2 ай бұрын

    Helped me clarify the difference between the retinal side and the corresponding visual fields, when it comes to lesion of the optic tract. Thank you!

  • @itsalkatib7213
    @itsalkatib72134 жыл бұрын

    Great Video! I like that you use different colors for illustrations instead of white and black in most pictures for visual field defects! totally subbing to your channel! :)

  • @RhesusMedicine

    @RhesusMedicine

    4 жыл бұрын

    Really glad it helps! Thanks!

  • @lybaalam6219
    @lybaalam6219 Жыл бұрын

    This video cleared all confusion 👏👏👏

  • @amine3226
    @amine32263 жыл бұрын

    Thank you so much! This is extremely helpful!!!

  • @madvillainee
    @madvillainee Жыл бұрын

    This was super helpful. Thank you. One question I have, for the macular sparing lesion labeled number 5, since it looks to be on the right occipital lobe, would the right temporal visual field and the left nasal visual field be spared along with the macula? Thanks again

  • @anfelbenmeddour5814
    @anfelbenmeddour5814Ай бұрын

    This what we call Art !!! Thank you sooo much 😍❤️‍🔥✨️✨️✨️✨️

  • @ahmedwaleed2687
    @ahmedwaleed26873 жыл бұрын

    Awesome illustration Thanks 💖💖

  • @K5shd
    @K5shd3 жыл бұрын

    Omg my friend In 7 minutes u cleared all the points about it Thank you ❤️❤️❤️❤️❤️😂

  • @RhesusMedicine

    @RhesusMedicine

    3 жыл бұрын

    You're very welcome! I'm very happy the video helped you 😁

  • @uroojzahra477
    @uroojzahra4772 жыл бұрын

    Appreciation from Pakistan. Really really helpful video💜

  • @yumnanaseer9303
    @yumnanaseer93033 жыл бұрын

    Cleared all my points. Very well explained!

  • @RhesusMedicine

    @RhesusMedicine

    3 жыл бұрын

    Thank you so much for your feedback! Best of luck with all your exams 💪😁

  • @abduljalilel9422
    @abduljalilel9422 Жыл бұрын

    Phenomenal explanation!

  • @faisalization
    @faisalization3 жыл бұрын

    Love from Bangladesh. This is truely an amazing video.

  • @RhesusMedicine

    @RhesusMedicine

    3 жыл бұрын

    Thank you!! Really appreciate the feedback 😎

  • @RhesusMedicine
    @RhesusMedicine4 жыл бұрын

    Buy Us A Coffee!: www.buymeacoffee.com/rhesusmedicine For more medicine videos consider subscribing (if you found any of the info useful!): kzread.info/dron/Rks8wB6vgz0E7buP0L_5RQ.html Video Timestamps: 0:00 Introduction 0:24 Optic Nerve Pathway Anatomy / Optic Chiasm / Optic Tract / Lateral Geniculate Nucleus / Optic Radiation 1:33 Temporal vs Nasal Retina 3:10 Optic Nerve Lesions - Anopia 3:32 Optic Chiasm Lesions - Bitemporal Hemianopia 3:56 Optic Tract Lesions - Homonymous Hemianopia 4:30 Optic Radiation Lesions - Quadrantanopia 5:04 What is the Macula? 5:32 Visual Cortex Lesions - Macular Sparing 6:23 Macular Degeneration USEFUL STUFF FOR MEDICAL STUDENTS: FREE Amazon Prime 6 Months for Students (Including unlimited 2-day shipping on orders of any value) US: amzn.to/3gMqh0p UK: www.amazon.co.uk/gp/student/signup/info?tag=rhesusmedicin-21 Venepuncture Kit: UK: amzn.to/3r7txrW Pocket Cards: Lab Values / References / ECG / History Taking (Cheatsheets for rotations!) US: amzn.to/3c3UybK UK: amzn.to/3rd37W8 Suture Practice Kit (Complete kit with pad) US: amzn.to/3c5ZJrN UK: amzn.to/3vO76fh Fingertip Pulse Oximeter US: amzn.to/3tFDT43 UK: amzn.to/3eZYoo5 (Affiliate links - We get a small percentage of sales, so if you buy anything, thank you!)

  • @darrenaydin2118

    @darrenaydin2118

    2 жыл бұрын

    I dont mean to be so off topic but does any of you know of a method to get back into an Instagram account? I was stupid forgot my login password. I would appreciate any tricks you can offer me.

  • @marshallanson1478

    @marshallanson1478

    2 жыл бұрын

    @Darren Aydin instablaster =)

  • @darrenaydin2118

    @darrenaydin2118

    2 жыл бұрын

    @Marshall Anson Thanks so much for your reply. I got to the site through google and I'm in the hacking process atm. I see it takes a while so I will get back to you later with my results.

  • @darrenaydin2118

    @darrenaydin2118

    2 жыл бұрын

    @Marshall Anson It did the trick and I finally got access to my account again. I'm so happy! Thanks so much, you saved my account!

  • @marshallanson1478

    @marshallanson1478

    2 жыл бұрын

    @Darren Aydin you are welcome xD

  • @sudeeser64
    @sudeeser64Ай бұрын

    You saved my life ❤❤❤❤❤ thank you

  • @AbaruWinfred
    @AbaruWinfred23 күн бұрын

    Easily understood, thanks

  • @saifurrehman6310
    @saifurrehman6310 Жыл бұрын

    Thankyou so much ..u described everything

  • @user-ce8wg8qt4s
    @user-ce8wg8qt4sАй бұрын

    1 wk pehle our physio exam was there but I did the lesion wrong and wrote what so ever wrong concept I have grabed before this .... thankyou sir for such great explanation now I have understood properly

  • @chijikamasaha9283
    @chijikamasaha9283Ай бұрын

    Where have you been??..So helpful! 😊

  • @cacannele1757
    @cacannele17577 ай бұрын

    This video absolutely helped me out !!! Thanks a lot :) 😊

  • @RhesusMedicine

    @RhesusMedicine

    4 ай бұрын

    You're welcome!

  • @mughal9007
    @mughal9007Ай бұрын

    best video on this topic

  • @Omeostatica
    @Omeostatica2 жыл бұрын

    Is it needed a resonance to know where the issue is on the optic nerve?

  • @theevilprankster
    @theevilprankster3 жыл бұрын

    Thank you so much!

  • @AB-em8iw
    @AB-em8iw5 ай бұрын

    You saved my time, many thanks

  • @RhesusMedicine

    @RhesusMedicine

    4 ай бұрын

    Glad it helped!

  • @khorolosurenshagdarsuren1494
    @khorolosurenshagdarsuren14943 жыл бұрын

    Appreciation from Mongolia. what a great video, i spent a lot time to understand some of these. as a foreign person, i would like to catch all these words one by one. is there any chance to find a text, to make sure only. i want to double check. since there is no subtitle.

  • @MedicomaMedLecturesOnline
    @MedicomaMedLecturesOnline4 жыл бұрын

    Great Video

  • @farjanaislam2620
    @farjanaislam26203 жыл бұрын

    Thanks a lot 💞

  • @011juherahman3
    @011juherahman32 жыл бұрын

    Really an awesome video😍😍😍 Thank you so much

  • @RhesusMedicine

    @RhesusMedicine

    2 жыл бұрын

    You're welcome!

  • @paperplane5265
    @paperplane5265 Жыл бұрын

    Thank you ❤

  • @docharry999
    @docharry9995 ай бұрын

    thank you sir.

  • @fatmayildiz8374
    @fatmayildiz83743 жыл бұрын

    Thanx a lot 👏🏻

  • @janisajattan874
    @janisajattan8749 ай бұрын

    Great explanation !

  • @RhesusMedicine

    @RhesusMedicine

    8 ай бұрын

    Glad it helped!

  • @amannsah3708
    @amannsah37086 ай бұрын

    Nice video.short and sweet🎉

  • @RhesusMedicine

    @RhesusMedicine

    4 ай бұрын

    Thanks!

  • @definingcomedy772
    @definingcomedy7722 жыл бұрын

    Excellent video

  • @RhesusMedicine

    @RhesusMedicine

    2 жыл бұрын

    Thank you 😊

  • @Aaaa-jm7ks
    @Aaaa-jm7ks Жыл бұрын

    Awesome explanation

  • @RhesusMedicine

    @RhesusMedicine

    Жыл бұрын

    Glad it helped!

  • @Redflag_2.0
    @Redflag_2.0 Жыл бұрын

    You explained it so well😭🫀

  • @RhesusMedicine

    @RhesusMedicine

    Жыл бұрын

    I'm happy it was helpful 🙂

  • @nileshjha5829
    @nileshjha58292 жыл бұрын

    no sooner u r going to be a big channel🙂

  • @wiamalbouzidi8362
    @wiamalbouzidi83622 жыл бұрын

    thank you!

  • @RhesusMedicine

    @RhesusMedicine

    2 жыл бұрын

    You're welcome!

  • @gideonoderinde923
    @gideonoderinde9238 ай бұрын

    Thank you

  • @RhesusMedicine

    @RhesusMedicine

    8 ай бұрын

    You're welcome 😊

  • @user-in3gn5ih2c
    @user-in3gn5ih2c8 ай бұрын

    Really appreciated

  • @RhesusMedicine

    @RhesusMedicine

    8 ай бұрын

    Thanks 🙂

  • @tariqhassan7306
    @tariqhassan73062 жыл бұрын

    Thank you sir..

  • @RhesusMedicine

    @RhesusMedicine

    2 жыл бұрын

    You're very welcome!

  • @jharylrobles45
    @jharylrobles453 жыл бұрын

    Is there specific cure for quadrantanopia

  • @johnreyes9926
    @johnreyes9926 Жыл бұрын

    thank you so much

  • @RhesusMedicine

    @RhesusMedicine

    Жыл бұрын

    You're welcome John 👍

  • @samgaming5215
    @samgaming5215 Жыл бұрын

    Very well explained. I always find it difficult to get my head around the visual pathways, but if you draw it out like the above, you can work it out fairly easily. If a patient has bitemporal hemianopia, I would investigate with a serum prolactin (which may be raised in pituitary adenomas), skull film and formal visual field testing to try and elicit exactly where their field defect is.

  • @RhesusMedicine

    @RhesusMedicine

    Жыл бұрын

    Thanks - I agree that drawing them out helps tremendously

  • @alaasaid6138
    @alaasaid61383 жыл бұрын

    THANK U SOOOO MUCH

  • @RhesusMedicine

    @RhesusMedicine

    3 жыл бұрын

    YOU'RE WELCOME 👌😄

  • @dr.poojak2726
    @dr.poojak27263 жыл бұрын

    I never got dis ryt untill today

  • @buthainaalmajed6957
    @buthainaalmajed69573 жыл бұрын

    Perfect

  • @RhesusMedicine

    @RhesusMedicine

    3 жыл бұрын

    Thank you! 👍👌

  • @StoicScape219
    @StoicScape219 Жыл бұрын

    Tyty :)

  • @RhesusMedicine

    @RhesusMedicine

    11 ай бұрын

    😊 You're welcome

  • @charlizecritchly8017
    @charlizecritchly8017 Жыл бұрын

    Why there is a homonymous hemianopia if only the red one is affected why both eyes are affected

  • @dr.soumyasworld1177
    @dr.soumyasworld11772 жыл бұрын

    👍🏼

  • @yasss3032
    @yasss30323 ай бұрын

    You made a mistake. It’s not the photoreceptor axons that form the optic nerve, it’s the ganglionic cell axons. Good video regardless.

  • @Commedycapsules
    @Commedycapsules3 ай бұрын

    i wonder how you managed to explain it in 7 minutes😂😂😂😂my lecturere took 2hours explaining same things

  • @Limitlessness1234
    @Limitlessness123410 ай бұрын

    Lateral geniculate is for auditory

  • @jurepreloznik8234

    @jurepreloznik8234

    7 ай бұрын

    medial is for auditory

  • @faybabe
    @faybabeАй бұрын

    Thank you!

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