{HEAD ~ The walls} of {TAIL ~ these vessels} leak fluid, which causes scarring in the surrounding tissue and results in reduced vision or loss of vision 
of
{ HEAD ~ The walls } of { TAIL ~ these vessels } leak fluid , which causes scarring in the surrounding tissue and results in reduced vision or loss of vision
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH