High resolution B-scan with axial motion correction turned on. (Extension: 0.8° × 670μm (optical)). ILM inner limiting membrane, RNFL retinal nerve fiber layer, GCL ganglion cell layer, IPL inner plexiform layer, INL inner nuclear layer, OPL outer plexiform layer, ONL/HFL outer nuclear layer/ Henle fiber layer, ELM external limiting membrane, IS/OS junction between inner and outer segments of photoreceptors, ETPR end tips of photoreceptors, RPE retinal pigment epithelium