Actions of the ocular muscles

[deltzful]

excellent explanation

[captjack5723]

Thanks, it was good. Wish you were a lil slower.

[DrLeoCharm]

Your diagram is misleading, in that the SO and IO are shown medially (between the two eyes) - SO and IO also partially abduct the eye, in isolation and in clinical testing are always drawn outwards for the classical 'H' testing of EOM.

Other than that, cool video.

[MrVickydoc]

great video 

[gunzish1]

Thanq!!! Amazing

[clorofenol]

hate the accent

[poobah42o]

Removed all my comments since nobody wants a dialogue with actual sources, just a youtube flame war. Only one other person outside of my comments provided sources. I tried to explain clinical caveats of the physical exam which differ from the actual actions of the muscles, but this went overlooked and went straight to the ad hominem attacks.

[RekenaarTV]

you sir, are a gentlemen and a scholar. Thank you for this fantastic video.

[baribassviolin]

@stapsell hey I'm not sure about your first error.. in my lecture slides is says that the superior oblique actually arises from the sphenoid bone just outside the tendinous ring(annulus of zinn.. so which is right?

[Adamello001]

This cleared out the confusion I had using Clinically Oriented Anatomy by Moore (6th ed.). In general a great textbook but there were some small mistakes in the extraocular muscles responsible for specific eye movements (pg. 904 for those that have it). Thanks for the video!

[Sunny014400]

Fantastic.

Sunil

[BeatRider44]

i am fucked for my vision science exam fml

[CupppyCake77]

oh my goodness thanks so much for this!! my butt is saved for tomorrows quiz!

[DrMojo32]

Enjoyed the animation but I do have one suggestion and that is should u choose to make more videos, try speaking a bit more slowly and use more time to explain. overall great vid!! thanks

[poobah42o]

@MrCreightonian Btw, enjoy the many years of scut work up through PGY-1 and in your case possibly longer whilst your ego becomes humbled.

[xartinos123]

Great vid. Elevation and depression in an adducted eye is the primary function of the oblique muscles.

[Allibaby78]

More videos please!!!

[sarahassouna]

thank you

[umar27891highlightss]

@stapsell great video thanks. i dont think u did get it rong with superior oblique. i think it originates from the body of the sphenoid. or thats at least what Clinically oriented anatomy (moore and dalley) says. i cant beleev how much controversy and different view points there are on this one topic. surely anatomy is either right or wrong. o well what can you do. again brill video

[rsouthern]

I hate everything about this video which I'm seeing and thats saying there is nothing good about it as it continues to violate and abuse humankind and just because its legal doesn't make it right.

[joycechen6368]

It is an excellent video with clear animation.

[gingin1787]

Thanks so much! This was very simple, straightforward, and informational. Perfect =)

[sparklingout2935]

nice vid....

[Alphawaste123456]

Good day sir, nice video. I'm a second year medical student from Jamaica and i have found your video quite useful. However at 40 secs you said the muscles come from the angulus of "Zinn" . Is that how it is spelt ?. I have never heard that terminology before but i understand them to arise from the angulus tendineus . Thank you for your response

[4383029]

I'm a bit confused...........

In the animation - it says, and shows, superior oblique ELEVATING the eye in ADduction

In the summary diagram - it says that superior oblique DEPRESSES the eye in ADduction

just wondering about this..........great video otherwise

[orora]

@poobah42o Video IS CORRECT according to the Thieme "Nervous System and Sensory organs". At 23 degree ABduction: SR act as elevator and IR act as despressor of the eye. At maximal ADduction (up to 50 degree): SO act as a depressor and IO act as an levator of the eye.

[hcube3000]

@poobah42o Yeah, he does say aBducted in the video, whereas the movement should be aDducted @1:57

[hcube3000]

@hcube3000 either that, or the image used is the wrong one (due to the position of the superior oblique)

[stillatshore]

@poobah42o no, your statement disagrees with what the video says. stapsell is correct that the SR and IR elevate and depress the eye, respectively, when the eye is ABducted, not ADdcuted (1:58). he is using a right eye in his example.

[stillatshore]

@poobah42o no, your statement disagrees with what the video says. stapsell is correct that the SR and IR elevate and depress the eye, respectively, when the eye is ABducted, not ADdcuted (1:58). he is using a right eye in his example.

[boonshofter]

@poobah42o please spare the science community your bullshit before you post. I just spent 20 minutes trying to verify what the hell it is you're talking about. You're wrong and the video is right. I don't give a shit if you're a strabismus dude. If you really were a fellow, you would know better! I'm just a 4th year here and I'm telling you PLEASE do not post unless you know what you're talking about. As to stapsell, thank you very much for taking the time to do this video sir. Have a good day.

[OnlyLauraWins]

@boonshofter Woah, you must be hella stressed out to be blowing up on a mere youtube comment like that. Remember to breathe. Youtube is not a trusted source for anything anyway - it's more entertainment.

[TheDawch]

@poobah42o I see your FELLOW in STRABISMUS and raise you Christian Lueck who is a PROFESSOR specialising in NEUROOPTHAMOLOGY who graduate top of the class in CAMBRIDGE who writes TEXTBOOK CHAPTERS on this stuff. His lecture notes I'm reading right now agree with the video.

[OnlyLauraWins]

@TheDawch Must've hit a nerve there... or muscle. lol.

[benshehzad]

excellent explanation.

And esp great summarization in the end of the video.

that really makes it simple to memorize it.

keep the good end summaries up.

Thanks for the post.

[0FFICIALXFACT0R]

"which act in the direction of the arrow you ahve drawn"

sorry i wasnot drawing anything. im online watching youtube...

[englishgalmd]

Hmm, the second time I watch this, I will be drawing it.

[POLARIS2333]

So helpful ..thx 4 uploading

[Relenabala6y]

Thanks so much

I really need this :) ...

[chocolatepah]

Totally clarified the eye for me. Thanks!

[jessica231287]

this is a great demostration!!.. Thanks a lot...

[dorinenps92]

thank u v much...really helps alot...thks...^.^

[iadknee]

very helpful..a million thanks sir!

[oooaznronnieooo]

thank u so much, i'mma give u head now!

[obadah1000]

Good work. Does the superior oblique act as the primary intorter and then the superior rectus as the secondary intorter when the SO is out?

[21nadeem]

That was an excellent video i have ever saw about eye movements.

[pinplio87]

perfect , thx!!!

[melseviltwin]

This is such an efficient way of learning about eye muscles! Thanks!

[Smile85000]

Great job, I will have to watch this video over again to try and commit this infomation memory. Thanks

[freejojo89]

WONDERFULL

[locomSGILES]

excellent.....thanx...