Assessing Errors Inherent in OCT-Derived Macular Thickness Maps

Figure 4

The impact of undersampling for retinal thickness measurements. As fewer B-scans are used, the average error per pixel (A scan) increases. This value was obtained by first subtracting each undersampled macular thickness map from the native 128 B-scan thickness map and then dividing the difference by the number of pixels (A scans).