'Low wavelength not activate cones', this statment is false. In the Video he corrects himself by saying the ligtht low intensity diactivates the cones. The rods have a much higher light sesitivity but the blue cones have a Adsorption Maxima at 420nm while the Rhodopsin is at 500nm. In Average while the Switching from Photopic to scotopic vision the spectral sensitivity shifts fom green to bluegreen also called Purkinje-effect/shift. So blue things appears to be brighter than red stuff.
Im a first year optom student and this was so helpful in prep for my exam! Thank you! My a level biology teacher reccomended your channel and its amazing I can still find videos here not only covering a level but university content too!
if only i found out about this channel since year 1 med school wasted 6 years now graduated and this helps review for usmle exam, thank you brilliant doc and teacher
"Oh man you know what? spiderman movie was so great! I wanna go back in again, and watch it again" 15:48 LMAOOOOOOO #Visual_adaptation Zach you are the B-E-S-T!
Thank you for another amazing video breaking down these complicated things in an understandable and organized way! Love the drawings as well - very helpful :))
I can't wait for the day when you have a contest for high school students and they give your whiteboard accounts accurately for scholarships. Think what kind of physicians we would have them.
Have you ever heard of the McCollough effect The McCollough effect is a phenomenon of human visual perception in which colorless gratings appear colored contingent on the orientation of the gratings. It is an aftereffect requiring a period of induction to produce it
This channel fell from heaven 💙💙
Really I’m so happy because we live in same time ♥️
Photoreceptors-
Rods-
Rhodopsin
Retinal sensitivity
Scotopic vision.
Cones-
Photospin
Visual acuity
Colour Vision.
Dark to light adaptation-
Pupil constrict
Bleaching pigment
Rods turns off
Retinal sensitivity decrease
Cones turns on
Colour Vision
5-10 minutes.
Light to dark adaptation-
Pupil dilation
Rhodopsin start accumulating
Retinal sensitivity increase
Rods turn on
Low wavelength not activate cones
20-30 minutes.
Colour blindness
Nyctalopia
Night blindnesses
Retinitis pigmentosum.
Thank you sir
👍
'Low wavelength not activate cones', this statment is false. In the Video he corrects himself by saying the ligtht low intensity diactivates the cones. The rods have a much higher light sesitivity but the blue cones have a Adsorption Maxima at 420nm while the Rhodopsin is at 500nm. In Average while the Switching from Photopic to scotopic vision the spectral sensitivity shifts fom green to bluegreen also called Purkinje-effect/shift. So blue things appears to be brighter than red stuff.
Now these are the type of people that are meant to do this job!! Thank you so much, taught me so much more than my university professor ❤️
You are my real Professor!!!for all of my med school.i m glad i found this channel in my first year ❤
Wish I had found you at the beginning of this semester.
What would I have done without you man ?
You're simply awesome.🙏
I have to tell you I have spent the whole day watching your videos haha, can't believe I only discovered them today
i really appericiate you making this informative video. one of if not the best one i've ever seen on this subject
Wow thank you so much, this video helped me get a better idea what my professor was explaining in class. ✔✔👍
BROOOOOOOOOOOO!!!!!!!!! This video was the best video in explaining this process. Thank you sooooo much for making it!!!!!!!!!!!!!
I agree!!
Finally made sense of my notes my lecturer gave .This is awesome
U teach more than my professors do
I love it. Excellent drawing and explanation. It draws all the points together that helps me understand the whole process. Very good job!
I never understood why pupils constrict in bright light before this video. Thanks Zack, stay blessed and continue helping doctors around the world 😍
you're actually clutch for this one
Im a first year optom student and this was so helpful in prep for my exam! Thank you! My a level biology teacher reccomended your channel and its amazing I can still find videos here not only covering a level but university content too!
if only i found out about this channel since year 1 med school wasted 6 years now graduated and this helps review for usmle exam, thank you brilliant doc and teacher
"Oh man you know what? spiderman movie was so great! I wanna go back in again, and watch it again" 15:48 LMAOOOOOOO #Visual_adaptation
Zach you are the B-E-S-T!
The best lectures are of ninja nerd
stay blessed ninja nerd , love you so much and you are the best .❣
You're more than perfect 👌. Thanks for your excellent and brilliant explanation 👏
You're the best teacher ever!
Excellent. Your grasp on the subject and teaching is just fab.
I love this man
This man is amazing. Always a pleasure watching your videos !!!!!!!
You are awesome Ninja Nerd
Thank you very much!!!!! It is truly amazing that you can condense all these information in this one video!
I love all of his Explaination.
This is gold. Thank you so much.
Amazing and informative video
FAVOURITE CHANNEL THANKYOU HOPE YOU LIVE A BEAUTIFUL LIFE 💜
Zack paaji tussii great ho ji .❤❤
Best chenell so far
Thanks for your time to make this video great
15.55 the happiness I saw on your face was so touching u make me laugh and enjoy my med study tho if it's hard
Thank you for another amazing video breaking down these complicated things in an understandable and organized way! Love the drawings as well - very helpful :))
You are raw talent… original and good.
Thank you
Terrific and glorious ninja
I have specialization exam for my PhD and I have this ticket - you saved my grade :D
dude is a LIFESAVER!!!!!!
Seriously a best lecture ❤️🙏
Great baby ,, I really appreciate this hard work ...,
You are a gift ❤️❤️❤️
Ultimate explanation sir 🔥🔥
Thank you so much Zach.
Thank you sir such a nice clear lecture and one of my favorit lecturer love from afghanistan
Amazing!
the best teacher
Thank you as always for this amazing work of art !
Amazing ❤ thanks a lot ! 🙌🏻🙌🏻
Awesome video
thank you soooooooo
much Zach
I can't wait for the day when you have a contest for high school students and they give your whiteboard accounts accurately for scholarships.
Think what kind of physicians we would have them.
thank you i am in ophthalmology residency, but no one help me to understand basic as you
Huge fan of ur sir😊
THANK YOU
You are truly blessed! Thank you!
You’re unbelievable!!!
Ohhh man you are genius ❤️
you're a life saver
Have you ever heard of the McCollough effect
The McCollough effect is a phenomenon of human visual perception in which colorless gratings appear colored contingent on the orientation of the gratings. It is an aftereffect requiring a period of induction to produce it
can u provide the link of visual pathway I am unable to find it
thank you so so so so so so so much
thank you for helping me pass the exam, sir Q_Q
your videos are amazing! helped me understand so well thank you:)
Lots of love ❣️🇮🇳
nice lecture 👍
Legend!
💛 thank you
Excellent
Wow! you are so so great! Thanks a lot!!!
Need the video on the embroyological development of human eye
Thank you sir
THANK YOU SO MUCH!!! Thank youuuuuuu.
Thanks sir....u r the best❤️
Thank you
Thank you so much.
Really helpful
I like before i watch.
Such a great lecture mahn😍
Thanks❤
superb awesome sir
Thanks a lot ❤️
nice explanation
thank you!!
you are the best
u r best , thanks sir
question : why does the rhodopsin have to accumulate ? in other words where did it go in the first place for it to accumulate ?
thanks in advance .
THANKYOU VERY MUCHIEEE
Thank you!!!!!
you make everything make sense
Nice!!
Thanks sir, sir I want study about ERG, so please suggest video..
Tysm sensei
Yes god exists! I found you my lord! Hail you sir😊🔥💎
god bless you man
thank you! :)
Thank you so much!!! 😭😭