| About this book Dr. Timothy Root is a practicing ophthalmologist and cataract surgeon in Daytona Beach, Florida. He began cartooning while an undergraduate at Yale University, and continued his medical illustration while earning his medical degree at Columbia University. Dr. Root has published several medical textbooks, including the popular “OphthoBook.com” which is available for free online and has been downloaded by 300-thousand visitors over the past decade. He is frequently requested to speak at medical schools world wide. Video recordings of his medical lectures are available online and have been watched over two-million times on YouTube … making him the most popular (at least numerically) eye lecturer in the world. |
![]() |
Example Lecture
This is one of Dr. Root’s ophthalmology lectures.
length: 24 minutes

As you can tell, this online dictionary is a work in progress. I am constantly updating the definitions and will be adding photo and video content as I make them.
If you have a question about any of the terms described, please feel free to leave a comment on the appropriate page. I’ll do my best to answer any questions you have. Thanks!
Great site dude!
Wonderful work sir..thanks a lot 🙂 🙂 🙂
Thank you! You Rock!
I’m a COT student, and I can’t thank you enough for your hard work in helping to educate us. Really enjoying your website and it has been very informative! Fantastic work!
This site is very useful. Thanks a lot sir……