In vitro 3-D OCT images of a rat eye (a) and in vivo OCT and video images acquired from normal human tissue (b–i). (a) Reconstructed 3-D OCT images of anterior chamber of a rat eye at angled view (left) and a top view (right), (b) fingernail plate and fold, (c) uvula, (d) oral mucosa along gumline, (e) skin on arm, (f) cornea, (g) tympanic membrane in ear, (h) foveal region of retina, and (i) optic nerve head. Abbreviations: NFL, nerve fiber layer; GCL, ganglion cell layer; INL, inner nuclear layer; ONL, outer nuclear layer; ELM, external limiting membrane; IS/OS, junction between the inner and outer segment of the photoreceptors; RPE, retinal pigment epithelium.