Table 2
Image analysis standard deviation (SD) of repeated measures and discrimination (SD of repeated measures divided by the scale range) of edge detection (% coverage) and relative colouration (%) for the Annunziato, Efron, CCLRU, and Vistakon-Synoptik grading scales
| SD repeated measures | Discrimination (%) | ||||
|---|---|---|---|---|---|
| Edge detection | Colouration | Edges detection | Colouration | ||
| Bulbar hyperaemia | Annunziato | 0.15 | 0.07 | 0.4 | 0.4 |
| Efron | 0.32 | 0.01 | 0.5 | 0.2 | |
| CCLRU | 0.07 | 0.14 | 0.4 | 0.5 | |
| Vistakon | 1.77 | 0.01 | 8.6 | 4.3 | |
| Palpebral hyperaemia | Annunziato | 0.24 | 0.07 | 3.5 | 0.6 |
| Efron | 0.84 | 0.12 | 5.6 | 1.1 | |
| CCLRU | 0.09 | 0.07 | 0.5 | 0.5 | |
| Vistakon | 1.93 | 0.01 | 9.5 | 6.1 | |
| Palpebral roughness | CCLRU white light | 2.36 | 0.36 | 5.7 | 1.3 |
| CCLRU Nafl | 0.90 | 0.48 | 3.8 | 6.7 | |
| Vistakon | 0.36 | 0.27 | 0.1 | 1.9 | |
| Corneal staining | Annunziato | 0.08 | 0.01 | 0.6 | 0.4 |
| Efron | 0.34 | 0.02 | 1.6 | 0.4 | |
| CCLRU | 0.66 | 0.18 | 4.4 | 4.1 | |
| Vistakon | 0.24 | 0.01 | 1.7 | 3.0 | |
