Fig. 1

Magnification of the central OCT (dashed box in (a)) by 400% for measurement of the outer retinal features. ELM - external limiting membrane, EZ or IS/OS - ellipsoid zone, RPE retinal pigment epithelium, CRT - central retinal thickness, PROS - photoreceptor outer segment, FOSPET - foveal outer segment pigment epithelial thickness (b)