At 2 years , eyes with sustained visual acuity loss had more scarring ( 60.0 % vs 41.4 % , P = .007 ) , more geographic atrophy ( GA ) ( 31.6 % vs 20.7 % , P = .004 ) , larger lesions ( 16 vs 8 mm2 , P < .001 ) , and higher proportions of intraretinal fluid ( 82.5 % vs 51.0 % , P < .001 ) , subretinal hyperreflective material ( 84.5 % vs 44.2 % , P < .001 ) , retinal thinning ( 43.3 % vs 23.0 % , P < .001 ) , and thickening ( 20.0 % vs 12.1 % , P < .001 ) .