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