Introduction to Optics (Video)
This video covers the basic optics you need to know to understand basic glasses prescriptions.
When I began my ophthalmology residency, I had no idea how to read or write a glasses prescription. In this video, I try to explain the basic topics I wish I had known. This includes lens theory, basic spherical problems (near and far-sightedness), astigmatism, cylinder conversion, and presbyopia (bifocals). While this lecture is “basic” and assumes you have no prior glasses experience … this is still important stuff. I hope you find this useful!
Screen Captures from this Video:
(comments below)
Thank you for this great video 🙂
very simple and good presentation suitable for undergraduate teaching
saludos desde Guatemala gracias por los videos me gustan
What a lovely presetation! I knew all this, but its so logically put together.
5th sem… med-student…thanks for the help!!!
Thankyou was great find this info
perfect videos, great explanation, ophtalmology seems a lot easier to me now;)) Tesik from Czech Republic, EU
thank you very much for this great job ,this chapter seems really easier to me now. WELL DONE
Perfect.you know what exactly we need to know.very practical.
THANK YOU SO MUCH
excellent. Thank you!
thank you so much, what a help for the exams!
Thank you very much for all presentations !! They’re very interesting and helpfull !!
nice video and very much useful to young doctors.
that,s great , thank u so much
thanq
You are amazing 🙂 very nice video thanx alot
i loved it , it is fantastic
thanks alot 🙂
I’m in my last year of med school and still learned a lot from your video. It’s amazing how you can make these topics so simple to understand. I really wish I had more professors like you! Thank you for your time!
Tt was an educational presenatation
thank you very much.
it is fantastic
GREAT!!! =)
Wow, this is how you nail a subject. I just graduated from medical school and this helped a lot.
You just helped some patients. Thank you soo much!!
Sir, this is great.
Thank u so much
love this website n ur teaching style too!!!!!!!!
thank you very much. i love this site and have learnt alot from here. i want to be ophthalmology surgeon. i’m so happy.
thank you again.
Dear Dr.
I truly appreciate your time and diligence making such an informative video for students such as ourselves. It was clear concise and an addendum to our school lectures. I would be interested in discussing with you about making future educational videos for students. Please contact me at your earliest convenience.
Thank you
Thanks a lot! Great job!
FUNky fantastic films! Keep making them!
thanks for this helpful video
you did a great job
keep it up
i really appreciate it.
Fantastic Very much…….. very much fantastic………………
Brilliant video! You are a natural teacher.
thanks
you are simply genious. thanks
thankyou.
thankyou for this useful video.
thanks a lot.this definitely manages to converge optics in everyone’s brains
if we learn some vedeo on ophthalmic lenses (glasses )property ,its very nice lecture
hi, i am a doctor, and i love your classes. Thank you for doing this, that help me a lot. From Costa Rica.
thanks a lot
Brilliant video
🙂 🙂 🙂
thank you Dr.Thimothy, this video & other staff in brilliant website are treasure for ophthlmic residents.. I wish i found this site when i was in my 1st yr.. anyway im not too late, im 2nd yr now;)
thank you sir its really amazing its my first time to understand correction in this fascinating way
you are amaaaaaaazing
thanks alot..
GREAT VIDEO!THANK YOU VERY MUCH
excellent website, very helpful. thank you!
excellent website..very good and informative videos for ophthalmology residents and doctor…keep on the good work sir…u are helping us a lot…
thankssssss can we download such videos
thanks sir you are sooo great at teaching ! I understand alot and things go smooth after watching your great videos ! Hope to hear more videos from you sir , you help us students alot . =)
thanku so much 🙂
thank you
plz some explanation about prisms in squint
awesome…………..and really i had no idea before this lecture about the glasses prescription.
this is really the best site,,, thank u very much for ur efforts ,,u r the best =))))
nice presentation
nice presentation ur video is very useful to residents
I think I love you!! Thank you soooooo much!!!!
i wish you could make a textbook for residents cuz definitely i’ll be the first to buy it.
thank u very much
tis video is not playing in vimeo .com
thank you ^_^ very good.
I love the videos, downloaded all the podcasts. Will you be making the rest available as podcasts soon?
Or make it possible to view them from the website on an apple device?
Best wishes and keep up the good work.
Thank you, You are a genius.
Yikes: I am teaching our residents here to always write RX’s +2.00 -1.00 x 180 degrees rather than +2.00 -1.00 @ 180 degrees….it is very confusing to place on the Power Cross when doing Prentice’s Rule Induced prism problems if one doesn’t make this distinction.
I hope this is just a typo. but OD’s and MD’s and Opticians around here will be ever confused unless that is just a local/regional way it is done in your area.
PS I love your effort and the results on your video’s and rec. them to residents here with the disclaimer about the prescription writing.
Roger Deshaies MD
so nice of you sir
tanx alot
is that you in the video with the nice house, and tie? great video! Thanks!
you’re the best! thanks a bunch!!!! :
you’re the best! thanks a bunch!!!! 🙂
Very informative. Greetings from Faculty of Medicine, Ain Shams University 🙂
thank you
it’s very interesting
you are the gift from Allah[God]
Excellent video. Short and concise but covering the important things. Very easy to understand.
Thank you so much for taking the time to make this and for having available for everyone.
Thank you so much Ophthobook. I have been trying to understand this for some time but the ophth registrars and optometrists explanation were over my head.
Wonderful video explaining all the basics.
One thing to note though, the reason why Optometrists use minus cylinder form is because as you said you can’t add cylinder to the spherical lens. Minus cylinder makes sense because the factory making the lenses use it because it is how they are actually made. Although conceptually positive cylinder is easier to understand… but leaves room for mistakes when they have to convert positive cylinder to negative cylinder form.
Thank you~it is so amazing~!!!!!!!!!!
Wow amazing thank you so much!
this website, videos, yeah well everything is just such huge help in making ophthalmology easy and fun!
Thank you so so so much!!!
You made it looks very easy..
@};—-
I am thirty and my fiancé and I are taking over my father’s three-generation old, small, Georgia practice. This is amazingly helpful, especially to the employees to reduce error and to increase optical intelligence in the office. Thank you!
Thank you! This is very useful! Greetings from Argentina.
thank you! continue to keep up the great work.
medical student.
it was nice..can i hve its download link??
Sir
Thank you so much for making such a sincere effort to help students of ophthalmology the world over. This is a brilliant website- practical, useful, and therefore extremely popular among all my college-mates.
We’ve stopped worrying about understanding the concepts of optics and dark room procedures (a feat in itself, considering it’s one of the toughest subjects, conceptually) because we know that we can rely on your website.
Thank you once again!
Brilliant!!! Thank you so much <3
nice u teach very well
plzzzzzz upload the catarct lecture quickly i need it! EYE have an exam in a week plzzzzzzzzzzzzzzzzzzzzzz
@Zafar: I never got around to recording the cataract lecture, as I have a couple of other cataract lectures already:
1. Introduction to cataracts
2. Cartoon Cataract Surgery
Also, you can read the cataract/lens book chapter. Good luck with your exam!
Thank you!! IT was great!!!
U r doing a brilliant job…I have never felt any lectures so interesting and entertaining as that of yours…. plzzzzzzz upload eye optics video as my exams r near…I hope u will update it soon…plzzzzzzzzzzzzz:-)
I will be taking a Royal college of London post-grad exam this Jan and this video has helped me a lot in understanding the optics section of the syllabus. Thank you for making it so easy. I am still having trouble grasping the concept and formulas of “the magnifying glass/loupe” and “anterior and posterior vertex lengths and powers”. Is there any related video or lecture that can help me understand them?
Thanks!
HI,
Amazingly useful videos.
HOWEVER I thought you should know: the Vimeo player does not allow skipping ahead or back. Which is really awkward if trying to revisit parts of the recordings. I’ve tried both IE and Chrome in latest versions to no avail.
Thank you for excellent, cogent videos!
thank u very much for this.. it is very amazing and make things simpler…
This site is fantastic! Thank you so much!!
Wonderful! you did well, it was so helpful
you are really,,good teacher. u concisely explain every thing in short time.thank you
Good video. Loved it. It would be good if you can explain a little more on astigmatsm.
Thank you very much, your videos are very informative, presented in a interesting and easy to understand way!
Awesome video. Thank you so much for this!!!
It is very good and made easy to understand well
AZAD
You videos are really informative. But I dont know how to download this
Thank you so much for making complicated topics that much easy…
Thanks for the simplicity done of this topic.
It help me to understand some area.
OMG thanks a lotttttt. i dont have words to express my gratitude
nice material for learning
thank you so much to the world’s wonderful ophthalmology teacher………………
Thank you for this great video! I’m applying to be a medical assistant at an eye doctors office and this really was a great introduction to some of the basics.
thank you sir. class regarding optics was great
You are great!!
I had never understand all this complicated concepts and numbers although I had study it so many times
You did explain it well and only in 20 minutes 🙂
Thank you so much
oh by the way, thank God I’m still a student 😀
Hi I am an ophthalmology trainee , trying to ‘brush up’ ensure I understand optics…this really set on the path of understanding optics better . Thank you so much you are an excellent teacher!
I’m astigmatic only for few year and is a ‘with the rule’ astigmatism. I knew a child that had ‘against the rule’ astigmatism at six.
Dr root
Your videos are so helpful
And also you make it enjoyable to watch
And your thorough
So thank you
I’m about to take my COA test
And your videos help
So thanks so much !
Des
am jerusalem from N.F enekorogha, this site is very very interested to me,now I can exam a eye patience. THANKS
dear Dr. your videos are great they are one of a kind in terms of there is no other good introductory resource produced online . optobook videos are great i hope you plan to do some more advanced videos sort of like a optobook 2.0
You are an amazing.You make it very simple and very interesting to learn.This is a wonderful website.Keep up the good work :-).
thanks alot , its realy amazing lecture, please if you can do one lecture about lenses and clinical issues of unifocal lenses and multifocal lenses
Thank Doctor, great video.
Resident from palermo, Italy.
Outstanding teaching!
studying for my COT JCAHPO having a hard time with the math and physics- formula for converting focal length to Diopters and vice versa-
I just can’t get it-any advice or tutorial you may have or know of would be great. my collection of books leave me bewildered!
It’s an amazing, easy, great video !!!
I can’t thank you enough
But as always it’s great presentation
Thank you!
This was so beautiful. Easy to understand. Great visual examples. To the point and precise explanation, great editing and over an amazing, resourceful and high yield video. Loved it. Thankyou.