Table 1.
The prevalence of identified scan errors and identifiable co-morbid macular pathology in the PROGRESSA population.
Fig 1.
An OCT scan demonstrating an acquisition error due to poor image alignment by the operator.
Part of the macula is anterior to the volume of space imaged by the macular cube. This results in missing data from the Ganglion Cell Analysis.
Fig 2.
Segmentation error (A) machine segmentation error (Scan 1) with white arrows showing loss of accurate segmentation. Repeat scanning at a subsequent visit (Scan 2) shows correct segmentation. (B) focal radial segmentation defect.
Fig 3.
(A) Epiretinal membrane showing horizontal B scan with attempted machine segmentation, and resulting abnormal Ganglion cell complex plot. (B) Macular schisis, with subsequent poor analysis of ganglion cell layering. Poor quality scan. (C) Myopic staphyloma.