1. The Evolution of the Plateau, an Optical Coherence Tomography Signature Seen in Geographic Atrophy

    The Evolution of the Plateau, an Optical Coherence Tomography Signature Seen in Geographic Atrophy

    Purpose : Histologic details of progression routes to geographic atrophy (GA) in AMD are becoming available through optical coherence tomography (OCT). We studied the origins and evolution of an OCT signature called plateau in eyes with GA and suggested a histologic correlate. Methods : Serial eye-tracked OCT scans and multimodal imaging were acquired from eight eyes of seven patients with GA and plateau signatures over a mean follow-up of 7.7 years (range, 3.7–11.6). The histology of unrelated donor eyes with AMD was reviewed. Results : Drusenoid pigment epithelial detachment (PED) on OCT imaging progressed into wide-based mound-like signatures with ...

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