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Example of the three-dimensional neuroretinal rim thickness (minimum distance band) of a progressing left eye imaged with Spectralis spectral-domain OCT: (a) baseline global minimum distance band thickness of the left eye and (b) global minimum distance band thickness 7 years later. The black arrows indicate the progressive focal MDB neuroretinal rim thinning (b) compared with baseline measurement (a). Reproduced with permission from [37▪▪]. MDB, minimum distance band.
