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