Optics Concepts Lecture

This lecture covers some basic optics principles such as refraction, diopters, and common vision problems faced in an eye clinic. This was recorded at the HOPS ophthalmic technician conference in Daytona Beach.


length: 26:00 minutes

Snapshots from this lecture:

opticslecture-nautilus.jpg
I explain the evolution/creation of the eye, from the simple pinhole eye of this nautilus, to the more complex lens system that we use.

opticslecture-prism.jpg
Pink Floyd’s album cover can tell us a lot about refraction.

opticslecture-diopter.jpg
This video segment explains lens diopter power, and how lenses can be stacked.

opticslecture-power.jpg
How we convert from our prescription to the power-cross and back. This also explains the difference between using “plus cylinder” and “minus cylinder” in our prescriptions.

opticslecture-accomodation.jpg
A video demonstrating accomodation, and explaining why children with congenital cataract surgery need bifocals.

opticslecture-blueblocker.jpg
Demonstrate how blue-blocker sunglasses remove chromatic abberation and improve perceived vision.

opticslecture-underwater.jpg
Understanding underwater vision to better understand the power of the cornea.

opticslecture-spheres.jpg
A great magic trick … Snell’s law being broken.


Comments and Feedback
6 Comments »


Hey Tim,

Enjoying your videos.

Ever think of making some of your videos in regards to OKAP review material? It would be a great way for ophthalmology residents (like myself) to study for the exam.

Take care,
David

Comment by david almeida — November 12, 2009 @ 8:33 am


Thgank you sir,

These are indeed very informative videos.
Kindly keep sending some more.

I just changed my e-mail ID and would like to have future interaction to your site with the above mentioned g -mail ID.

Thank you

Comment by Dr.Abhishek Patnaik — November 12, 2009 @ 12:16 pm


Dr. Tim,

I love your videos, they are very very well done, it means you master slit lamp and digital video editing, an so they are a very nice source to learn more tricks and things that we can do with slit lamp, thanks for that.

I am an optometrist who works in Ecuador (South America), where optometric education is very poor, but your videos have taught me a lot and motivated me to buy a beam splitter and to adapt a video digital camera and a SLR camera, expensive for me, but I hope someday make great videos like yours. You have been an inspiration for me.

Thanks also for other videos like “Optics Concepts” or “Twenty Eye Exam Tricks for Tricky Patients”, very easy and nice to follow.

Sorry for my English, I hope you understand, and again thanks so much, please continue your work.

Comment by Gustavo Sánchez — November 27, 2009 @ 2:36 pm


dr.tim
i loved your videos very much
please i need all your videos
please publish more as your videos are very useful
thank u dr

Comment by dr.samar — March 29, 2010 @ 2:53 pm


Hi Tim… you are a “master” teacher…!!
I love teaching as well…
i would love to make cartoon videos for better teaching… how do you do that? can you give me tips or teach me how to do it? or maybe you can make a video about how to make videos !

Comment by Danah PGY4 Ottawa — May 18, 2010 @ 8:09 pm


Great videos and demonstrates basics of optics in a very lucid way !

Comment by Subhabta Bhattacharya — September 10, 2010 @ 5:27 am


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