Imaging protocols in clinical studies in advanced age-related macular degeneration: recommendations from classification of atrophy consensus meetings por Holz, F, Sadda, S, Staurenghi, G, Lindner, M, Bird, A, Blodi, B, Bottoni, F, Chakravarthy, U, Chew, E, Csaky, K, Curcio, C, Danis, R, Fleckenstein, M, Freund, K, Grunwald, J, Guymer, R, Hoyng, C, Jaffe, G, Liakopoulos, S, Monés, J, Oishi, A, Pauleikhoff, D, Rosenfeld, P, Sarraf, D, Spaide, R, Tadayoni, R, Tufail, A, Wolf, S, Schmitz-Valckenberg, S, CAM group