Fig. 1From: The potential of spectral domain optical coherence tomography imaging based retinal biomarkersSpectral domain optical coherence tomography showing grades of disruption of the ELM and EZ. a Grade 0: no disruption of ELM and EZ. b Grade 1: ELM disruption (white arrowhead), EZ intact. c Grade 2: both ELM and EZ disrupted (yellow arrow)Back to article page