Understanding Relative Afferent Pupillary Defect (RAPD) & Marcus Gunn pupil

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  • Опубликовано: 24 ноя 2024

Комментарии • 25

  • @shreyamundada5226
    @shreyamundada5226 8 месяцев назад +1

    Ma’am have you made a mistake in swinging flashlight test ? 3rd row RE you have written constrain consensually but it’s direct reflex only in right eye also. Please clear my doubt. Time3:35

    • @InsightOphthalmology
      @InsightOphthalmology  8 месяцев назад +1

      When we carry out a swinging flash light test, we are conducting both direct and indirect test together .
      But yes the labelling in the book is wrong, the RE is showing construction due to the direct reflex and the left eye is showing constriction due to indirect/ consensual response..
      I hope that is clear😊

    • @InsightOphthalmology
      @InsightOphthalmology  8 месяцев назад

      When we carry out a swinging flash light test, we are conducting both direct and indirect test together .
      But yes the labelling in the book is wrong, the RE is showing construction due to the direct reflex and the left eye is showing constriction due to indirect/ consensual response..
      I hope that is clear😊

    • @shreyamundada5226
      @shreyamundada5226 8 месяцев назад

      Thank you ma’am

  • @mahassab1398
    @mahassab1398 4 месяца назад +2

    Wow, I have been looking for an understandable explanation on RUclips for half a day now. Could not find one that explained it so clearly. Thank you so so much. This is the epitome of a good teacher. Thank you.

  • @ishneetkaur4180
    @ishneetkaur4180 2 года назад +3

    Most comprehensive video on RAPD 😊 Thank you ma'am

  • @htinlinn4399
    @htinlinn4399 3 дня назад +1

    Madam thank for your explanation I am a big fan of you but this video have 2 mistakes first was Rt and Lt eye mismatch in explaining swinging light test
    Second was during reverse RAPD test
    From what I know reverse RAPD was examiner artifact test that occour when examining total blind eye and normal eye
    So reverse RAPD can be used in cases of complete blindness in one eye (e.g., no light perception) to confirm the lack of any afferent input from the blind eye.Also to Avoid misinterpreting the findings during a standard RAPD test, which could lead to confusion.

    • @InsightOphthalmology
      @InsightOphthalmology  3 дня назад +1

      Thank you for sharing :)

    • @htinlinn4399
      @htinlinn4399 3 дня назад +1

      @@InsightOphthalmology Also thank you for your hard work I appreciate it very much
      Please Keep educate us ❤

    • @InsightOphthalmology
      @InsightOphthalmology  3 дня назад +1

      You're welcome! Thank you for your support:)

  • @zobiaali927
    @zobiaali927 10 дней назад +1

    Best video 👍

  • @pratheekprabhu4473
    @pratheekprabhu4473 9 месяцев назад +1

    Left eye Right eye mismatch is there in the explanation vs the image that has been put up in the swinging light test slide

    • @AmritSahilPanjwani
      @AmritSahilPanjwani 8 месяцев назад

      At what timing?

    • @ihedinmaegwu4174
      @ihedinmaegwu4174 4 месяца назад

      Was looking for this comment. She switched it up. It is clearly written that the LE is normal and the RE has the defect

  • @laibaali2297
    @laibaali2297 4 месяца назад +1

    Thankyou so much TT thanks alot. I was soo confused

  • @debigdogk9563
    @debigdogk9563 Год назад +2

    Thank you thank you and thank you ❤❤❤❤❤❤❤

  • @abhishekchaudhuri714
    @abhishekchaudhuri714 7 месяцев назад +1

    In reverse RAPD if RE has efferent defect and intact afferent why stimulation from RE will be less to the left side during concensual light refelx??

    • @InsightOphthalmology
      @InsightOphthalmology  7 месяцев назад +3

      Hi Abhishek! From what I understood from your question; I think you are asking about the efferent and afferent status in RE
      In RE both are affected..
      To understand this we have to also understand the pupillary pathway.
      Each afferent limb has two efferent limbs, one ipsilateral and one contralateral. The ipsilateral efferent limb transmits nerve signals for direct light reflex of the ipsilateral pupil. The contralateral efferent limb causes consensual light reflex of the contralateral pupil.
      So here the RE Efferent is affected so no direct reflex. Now we need to check if afferent is also affected or not?
      For this we rely on the other eye consensual response..
      If the other eye consensual is absent, it means either the RE afferent is defective or LE efferent.
      ( You can exclude LE efferent defect as the pupil is nicely constricting to direct light...right?
      So it means we have a RE afferent defect !

  • @hunainfaheem9134
    @hunainfaheem9134 Год назад +1

    Thankyou sooo much mam

  • @panduranjrokade869
    @panduranjrokade869 2 года назад +2

    Good lekcher

  • @sukhdevsingh-in5ee
    @sukhdevsingh-in5ee 2 года назад +1

    Epic explanation mam👍👍👍

  • @mohammedameen6824
    @mohammedameen6824 Год назад

    In Marcus Gunn pupil is accomodation intact ??

  • @ma.roxannefernandez9050
    @ma.roxannefernandez9050 6 дней назад

    Kkkkkko