Factors Affecting Cirrus-HD OCT Optic Disc Scan Quality: A Review with Case Examples

Figure 10

Inaccurate retinal nerve fiber layer (RNFL) segmentation. Pair of right optic disc scans collected on the same day ((a)-(b)). The second scan presents with a motion artifact intersecting the temporal and nasal quadrants of the scan circle ((b) arrow), which is likely responsible for the subtle RNFL segmentation error ((d)-(e), arrows) and the resulting temporal RNFL thickening with classification change ((f)-(g)). SS: signal strength.