In the B50 group , choroidal neovascularization size was smaller ( 0.73 vs 1.83 disc areas [ DA ] ; P < 0.001 ) , total lesion size was greater ( 4.55 vs 2.31 DA ; P < 0.001 ) , total retinal thickness was greater ( 524 vs 455 m ; P = 0.02 ) , and mean VA was worse ( 56.0 vs 60.9 letters ; P = 0.002 ) .