Quick question: need some help with a lens effect filter

I'm playing with the iphone 8mm video cam app and they have this familar lens effect... as seen here
http://www.youtube.com/watch?v=Dkh7Ok8cQmw

Would anyone know the name of this effect... it's almost like a hard pulsating vignette that you'd see in old 70's home films

I wanted keep the video as clean as possible and use a plug-in or method to re-create that effect in post-production....