Classifications of circumpapillary retinal nerve fibre layer (cRNFL) thickness according to Heidelberg Spectralis proprietary normative database for overall classification and average global thickness. Red=outside normal limits; yellow=borderline
| Overall classification | Average global | ||||
|---|---|---|---|---|---|
| ONL (≤1%) | BL or ONL (≤5%) | ONL (≤1%) | BL or ONL (≤5%) | ||
| Including participants with glaucoma (n=3221) | Right eye scans (n=2763) | 224 (8.1%) | 673 (24.4%) | 102 (3.7%) | 271 (9.8%) |
| Left eye scans (n=2698) | 250 (9.3%) | 701 (26.0%) | 124 (4.6%) | 263 (9.7%) | |
| Participants with ≥1 scan (≥1 eye) (n=3012) | 366 (12.2%) | 980 (32.5%) | 170 (5.6%) | 378 (12.6%) | |
| Excluding participants with glaucoma (n=3130) | Right eye scans (n=2687) | 188 (7.0%) | 621 (23.1%) | 75 (2.8%) | 228 (8.5%) |
| Left eye scans (n=2628) | 204 (7.8%) | 645 (24.5%) | 86 (3.3%) | 218 (8.3%) | |
| Participants with ≥1 scan (≥1 eye) (n=2929) | 305 (10.4%) | 709 (24.2%) | 122 (4.2%) | 257 (8.8%) | |
BL, borderline; ONL, outside normal limits.