{HEAD ~ The photosensitive agent} is activated by {TAIL ~ low energy light} that is directed to the neovascular target site, and also may be directed to a surrounding area using a laser  
{ HEAD ~ The photosensitive agent } is activated by { TAIL ~ low energy light } that is directed to the neovascular target site , and also may be directed to a surrounding area using a laser
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL 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 OTH OTH OTH