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Anatomy of the Eye Video

length: 25 minutes

This second video is chock-full of high-yield anatomy facts. The eye is a complex structure with layers, lens, muscles, receptors, that is surrounded by many bones. I keep things simple in this video, and correlate directly with the anatomy chapter from the book. I’ve also scanned in an entire head CT to help you correlate the cartoons with real clinical imaging. Here are screen-captures from this video:

Screen Captures from this Video:

The orbicularis closes the eye, while the levator raises the lids. Each has their own innervation (cranial nerves 7 and 3)

The external eye is covered by the thin conjunctival tissue, which inserts at the limbus of the eye.

The nasolacrimal duct drains tears from the eye surface into the nose – explaining why your nose runs when you cry. You can see this duct on CT.

The punctum is small and located on the medial lid, near the nose. We can put plugs in the punctum to help with dry eye.

This patient has an eyelash that’s stuck in the punctum.

The cornea and sclera are continuous with each other … however, the cornea is clear because it is relatively dehydrated.

The cornea has five layers – the endothelial layer acts as a pump to keep the cornea dehydrated.

The ciliary body sits behind the iris and tethers the lens in place by a 360 degree network of zonular fibers.

The lens has the configuration of a peanut M&M with an outer capsule, middle cortex, and central nucleus. In this advanced cataract, the cortex has liquefied into a milky consistency, and the central brown nucleus has sunk to the bottom.

Eye movement is controlled by rectus and oblique muscles that tether the eye and connect at the orbital apex.

The orbital walls are formed by seven separate bones. They aren’t that difficult to learn when you review them one-by-one.

You can see the orbital bones and the extraocular muscles on CT – a coronal view like this one works best.


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the films are perfect.

Comment by HECTOR BARAJAS — March 16, 2008

It is nicely explained.Good job!

Comment by gurinder — June 14, 2008

its informative, good enough explainatory and very healthy education abt outer adnexa and anotomy in short time, excelent explaination ‘m looking more video abt this topic if u guys have just email me plz
thanx and best regards

Comment by Jaff syed — June 19, 2008

this information is very use full students, very good diagrames simple points,

Comment by Mohd. Atheeq Ahamed — September 17, 2008

Thank you very much , this video helped me alot in understanding the anatomy of the eye … keep going ^-^

Comment by emma — November 5, 2008

it is execellent i really enjoy iy

Comment by basma — November 25, 2008

would like to see more!!

Comment by Dr.Vijay Dani — February 23, 2009

Thank you very much. This was great. It really helps students understand.

Comment by Brooke — February 26, 2009

Superb! Thanks

Comment by usop — March 1, 2009

i wanted to revise the eye anatomy before starting opthalmology 25 min worth watching the vidio thank you so much

Comment by devyani — March 23, 2009

this video was really very helpful….

Comment by swathi — March 24, 2009

hope everybody is doing fine.these videos are superb!but what should i do to download them?

Comment by nur — March 29, 2009

I’ve been studying from books for my OMA certification but I’ve never been able to see the eye pictured like this. It has been a tremendous eye opening help (pun intended). Thank you so much.

Comment by Karri — April 21, 2009

But where do i download this video ? is there any link to download it ?

Comment by Dark Lord — April 28, 2009

It really helped me 2 understand the basics about the eye…pictures and illustrations were very helpful

Comment by piyumi — May 13, 2009

I am a 4th year medical student. Currently attending eye ward @Hamdard University,Karachi, Pakistan. This video has helped me immensely and it made and impact on my memory (which is a very difficult job to do)…
I appreciate the simple examplainatory method and awesome slides. You have done great service for humanity…
Rasheed Syed :)

Comment by Rasheedullah Syed — May 22, 2009

Awesome!a simple and methodical way.thanks for a quick revision.

Comment by suba — May 28, 2009

This is one of the best medical websites I have ever seen.

Comment by chris — June 11, 2009

the lecture was great and appropriately related all the clinicals.i think all students learning about eye should watch the video.

Comment by aiza ansari — June 13, 2009

super ..when wil lens optics come..i’m waiting..
please put it up soon

Comment by momo — June 19, 2009

Simply exellent.

Comment by Farooq Ahmed Moghul — July 28, 2009

Perfect video for ocular anatomy!

Comment by Giba — July 31, 2009


Comment by Peter Pan — July 31, 2009

I am a student of B.Sc(HONS)Optometry and Orthoptics(ALLIED HEALTH SCIENCES) 2nd year in NISHTAR MEDICAL COLLEGE ,MULTAN, PAKISTAN.This video is especially helpful for the students of Optometry and Orthoptics.I am grateful to the site runners because.
Nishat Bokhary

Comment by Nishat Bokhary — August 3, 2009

Very good presentation. Thank you. This will assist me with my class lectures on Anatomy in a Surgical Technology class.

Comment by DDougherty — September 5, 2009

I liked it, I Think that this kind of images are good like material.
One of the best things to learn anatomy is although pictures. that help me ….. thanks!!!!!

Comment by edna mora — September 10, 2009

I am attending school for a Visual Impairment teaching certification, so I have no medical background. I am required to take an eye anatomy and visual functions class that has a very technical and confusing textbook. This video made turned gibberish and nonsense into something I could process! Keep it up and PLEASE make more videos!

Comment by Jenn Karn — September 11, 2009

Ilove the video and would like it very much if youl could send me the link through which i can download it so that it will assist me in learning my ocular anatoomy

Comment by Addai Richard — September 28, 2009

The videos are a joy to watch and a welcome respite from the world of textbooks. Thank you.

Comment by J Rouwhorst — October 4, 2009

[…] annotated pictures (language is Dutch). The anatomy of the eye is also very nicely illustrated in a video lecture from […]

Pingback by schouppe.net » The human visual system — October 13, 2009

fantastic lecture and great site

Comment by ahmed nassar — November 12, 2009

thousands of thanks from me to everybody connected to crate this…………thanks

Comment by dhaval shah — November 20, 2009


Comment by fernando ruiz — December 2, 2009

thanks a lot. this video should be used as an introduction before hitting the core anatomy of the orbit and the eyeball and surely as a first chapter in an ophthalmology course. i hope you keep on doing this great job.

Comment by veshak kumar keerpaul — January 16, 2010

Thank you Dr. Root. brilliant and easy to follow video. Keep up the good work.

Comment by Syed Junaid — January 25, 2010

guys i wanna tell you that you are unbeievable-you give free amazing awesome lectures to all people just to make them understand-god bless you – my best wishes

azhar hussain

Comment by whiteman — January 27, 2010

Nicely Explained Lectures. Good job.

Comment by Dr.Mehboob Ali — February 26, 2010

Hi, this is just great! =) Thank you very much.

Comment by Ana — March 8, 2010

thaaaaaanx………..i was confused of d interior

Comment by aashish — March 22, 2010

it is brilliant idea but ican’t acsses to see cartoon videos

Comment by salma — March 23, 2010

Thank you so much.
These are all perfect,artistic.I have seen different videos from different resources,but watching yours,encourage me to study more.You know all what we need to know.
Again,this is ”art”.

Comment by Shahram — March 29, 2010

it is great site for learning

Comment by mohammed — April 27, 2010

Excelente, gracias por su tiempo para realizar estos videos de gran ayuda pedagogica

Comment by José Fernando Castillo L — April 29, 2010


That was really Great, I can’t express my thankfulness :)
Excellent job !

Comment by dr-HAM — April 30, 2010

thank you very much for this excellent website.

Comment by rasha — May 4, 2010

Thanks for this.

Comment by Dr leena — May 27, 2010

Thanks for the video and website!!!

Comment by M. Cooper — May 27, 2010

I would like to partner with you.
I am planning to establish an Online University for the poor communities of Madagascar. One of the subject I want to offer (not for making profit) is Ophthalmology.

Could you let me know how can it be possible?
Best regards,

Comment by Rafieferana Faly — June 10, 2010

thank u so much to all connected vid sharing this valuble knowledge n making optha more easy n interesting….

Comment by sonali — June 23, 2010

thanks recpectable persons

Comment by DR ZAFAR KHAN SANGHAR — June 26, 2010

This is a very nice review course for boards! Thank you!

Comment by WashDoc — July 18, 2010

awesome lecture man
love it

Comment by adeel — July 28, 2010

Really excellent work,I greatly appreciate your hard work and effort , I will give this site to my students to let them see how to be devoted to their work.
Thank you sooooooo much

Comment by Prof Dalal Shawky,Professor of ophthalmology , Alexandria University — August 22, 2010

what a video !
it’s amazing
go on…..thanks for your efforts

Comment by fatenabdallah — December 26, 2010

its very good and make everythings easy thank u very much

Comment by Kamal mostafa — January 7, 2011

Excellent video;
Thanks a lot.
Regards from Madagascar

Comment by philantoo — February 24, 2011

The cornea is not dehydrated relative to the sclera. It is actually the other way around, due to the cornea having ~4 times the number of glycosaminoglycans as the sclera. The hydration provides the proper spacing between collagen bundles to cause destructive interference, reducing scatter.

Comment by Steven — March 11, 2011

Great work thank you alot for the great efforts:)

Comment by Mohammad Halabi — March 14, 2011

thnx a lot ……….keep this work goin on…..it helps us…..

Comment by ayesha — March 27, 2011

:) Well explained!

Comment by ad — March 31, 2011

Excellent Video and great work , Cannot thank you enough Dr.Root

Comment by brandon Mchiver — April 9, 2011

thanks a lot…m a medical student very useful…

Comment by aswin — April 11, 2011

Very good and helpful. Thanks a lot.

Comment by Cindy — April 25, 2011

thanks a lot…

Comment by gayathri — May 11, 2011

hey awesome video.
it cleared all my doubts.
can u please please explain development of eye.i find embryology really boring and difficult to understand.

Comment by juhi shah — June 8, 2011

thanks a lot
the video is clear for d understanding of d ug student

Comment by rajesh — June 26, 2011

The video does not load on my computer. I am certain I have flash installed. Does anyone else have this issue too?

Comment by Covert — July 2, 2011

thank YOU
I hope there will be more videos to watch with most common eye pathology.I am a general practioner and this concise videos are what I need and can change my practice thanx to you

Comment by RASULY — July 24, 2011

thank you
very nice demonstration

Comment by Mahmoud Elghala — July 28, 2011

loveeeddd it…your site is precious…
may god bless you for such noble services..:)

Comment by aly — September 10, 2011

Wow, I am a medical student from Japan and I am enjoying these vids to the fullest. You are AWEEEEEEESOME!! I’ve already watched each vid x2 and am really really hoping you’d make many more of this!! Wish you could do this for all the medical specialties, you have so much talent, you are very funny, and keep the audience entertained. Never found optho so fun. Again, thanks for making such a generous contribution to all the world!!!! Will be sharing this site with others. LOVE

Comment by optogal — September 21, 2011

hi i am ophthamalogist in pakistan this video opened my fourteen closed doors. So please shared full knowledge of books and full subjects of ophthalmology. Thanks many times

Comment by faisal — October 11, 2011

I am indeed impressed by the great video and a very simple and comprehensive explanation. I am able to understand the anatomy of the human eye. Please more videos for other aspects of anatomy. Thanks.

Comment by Indira — October 31, 2011

very good video and helps to understand the sublect

Comment by p r prasanna klumar — November 15, 2011

I am indeed impressed by the great video and a very simple and comprehensive explanation.
Regards from intern from Palestine Al-Quds

Comment by hijo — January 7, 2012

thank you vetymuch
this is great

Comment by rongjunbo — January 16, 2012

superb video easy way to understand ………………..how to download??????????????????????

Comment by shiney — January 16, 2012

It is a very useful site for medical students. Thanks very much for your contribution to us students’ learning.

Comment by Hulya Guller — February 7, 2012

amazing…thanks SO much!

Comment by may — February 22, 2012

great experience…wonderful site..thanx for being there..:)

Comment by megha — February 29, 2012

im from bangladesh.
Great work, thanks alot for the great efforts:)

Comment by nush — March 14, 2012

Pls how can i download your videos:i’ve watched the video on retinoscopy from a friends laptop,it was awesome.am a 5th year student of optometry in university of Benin Nigeria.

Comment by steve — March 20, 2012

i m from somalia
i m medical student this is very usefull. thank you very much, you did great work.

Comment by mustaf — May 30, 2012

It’s make easy to learn

Comment by Satyaranjan — August 13, 2012

im a medicine student from iran
many thanx for your useful efforts

Comment by younes — August 28, 2012

Very good presentation

Comment by Omar — October 16, 2012

vary thanks for this video

Comment by wali — December 7, 2012

I am a teacher of young children who are blind and low vision. I have been using your videos to upskill my colleagues on the anatomy and physiology of the eye so they can better understand the children’s eye conditions. Your style is clear and concise and that makes it accessible to everyone. Thanks and please do more! A series on common eye conditions would be very helpful!

Comment by Linda — February 24, 2013

this a great resorce to my projectcs im working on i might actually get an a plus

Comment by alysha stobaugh — March 6, 2013

Thank you for great work
I hope u do lectures in instruments and investigations of ophtholmology

Comment by Egypt — April 14, 2013


Comment by Ana Mairena — May 4, 2013


Comment by KUMARI — May 5, 2013

My gratitude to Dr Root. I must say this is a wonderful resource ! So far one of the best i’ve come across !

Comment by Jamal — May 27, 2013

hi there, i am from Recife in BRAZIL South America, and I really liked the sharing of this video with us down here in this part of the world…

Comment by claudioagmfilho — May 28, 2013

thanks a ton !!!

Comment by qurrat ul ain — October 19, 2013

It’s awesome! It was so boring to learn ophthalmology by faculty’s book. This one is much better! Can’t imagine my exam preparation without this stuff! Thank u, Tim! U r the best ophtolomology teacher ever!:)

Comment by Zoe — January 7, 2014

I love it, you’re so cool

Comment by SH — January 11, 2014

as a final yr medical student,i clear my concept of anatomy about eye,thanks a lot to give such awesome information

Comment by bappa — March 14, 2014

Thank you!!! From Trinidad and Tobago, West Indies

Comment by Final Year Medical Student — April 1, 2014

Amazing video! Is there a way to start the video at certain times? Clicking at a specific time just takes the video back to the beginning.

Thank you!

Comment by Jonathan — April 29, 2014

very great work

Comment by maryam — August 14, 2014

i am dr from somali i really intersting this lectures

Comment by DRHassan — September 18, 2014

it is very good learning method

Comment by محمد توفيق تيركي — October 21, 2014

Perfect and educative videos for med students and new residents ! Thank you for your willingness to teach !

Comment by Elpid@ — October 28, 2014

Thanks so much for making this whole thing free. I’ve finish reading the book and would like to watch all the videos too. Unfortunately, almighty Great Wall of China don’t really like Vimeo, these video simply won’t load! Is there any other ways that I can assess them?

Comment by PoorChineseStudent — November 4, 2014

Agree with the amazingness, BUT like April 29th says, if you try to click on the timeline of the video it takes you right back to the beginning, which is VERY frustrating. If you want to rewind at all to hear something again, it’s impossible and will make you have to start from the beginning, and once you’re there, there’s no fast forwarding either.

Comment by Jason — December 23, 2014

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