TRAFFIC ADVISORY:

President Trump is scheduled to be in Philadelphia on Tuesday, September 15, 2020 at The National Constitution Center (NCC) in the Independence Mall area. Increased police presence is anticipated in Center City throughout Tuesday afternoon and evening. Please allow extra time if you are going to Wills Eye. Please be advised of area street closures to vehicles beginning at 1:00PM on Tuesday 9/15. Pedestrian access will also be limited in the area. This is subject to change and area restrictions, which could widen, will be lifted once the President departs the NCC. There are also demonstrations planned for Tuesday 9/15 around Independence Mall as well as City Avenue.

Vitreous (Vitreous Humor)

The vitreous is a clear jelly like substance that fills the center of the eye. It is composed mainly of water and comprises about 2/3 of the eyes volume. The vitreous helps the eye maintain a round shape and is attached to the retina at various points including the macula and the optic nerve.