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How high can the Standard Deviation of the ONH Topography be?

April 26, 2017deviation high onh standard topography

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How high can the Standard Deviation of the ONH Topography be?

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Image quality is expressed in terms of the average standard deviation and should be as low as possible. A Standard Deviation of 50µm or higher indicates that the data should be used with caution. Standard Deviation should also remain consistent throughout the exams (20, 22, 25 not 45, 30, 12).