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