University of Iowa Health Care

Ophthalmology and Visual Sciences


Are you having trouble viewing the videos on this website?


If you receive the error "file not found" on the videos:

Upgrade your browser. The video players on this website are html5 video objects. Older browsers are not able to display them properly.

If you are experiencing lag and/or choppiness while viewing the videos:

This could be caused by a high amount of network traffic going in and out of our media server. Another reason this could occur is due to low bandwidth (slow internet connection). If your computer is connected to the internet via a T1, your internet connection speed will be fast and you shouldn't be experiencing any lag while viewing the videos. If you are using a DSL or cable modem connection, your internet connection will be fairly fast, and you may experience very little lag while viewing the videos. If you are using a dial-up modem, you will most likely experience lag and choppiness while viewing the videos. You can test your connection speed by going to the following web site: 

If you have other problems that are not listed above, please contact me at and I will make every effort to assist you.