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Evolution of human vis-OCT systems. (A) Photo of the laboratorial prototype system reported in Ref. (29); (B) photo of the engineering prototype system reported in Ref. (30); (C) photo of the latest clinical system with LED array mounted for fellow-eye fixation. Optical components, electronics, and the light source are all stored within the cart. Vis-OCT, visible-light optical coherence tomography; LED, light emitting diode.
