Table 3.
Comparison of Mean Coefficients of Variation Across Subjects Between the LacryDiag and Keratograph
| CV% | ||||
|---|---|---|---|---|
| Test | Observer | LacryDiag | Keratograph | P Value |
| TMH (mm) | A | 8.0 ± 4.9 | 8.5 ± 5.4 | 0.64 |
| B | 6.8 ± 4.8 | 8.4 ± 7.0 | 0.18 | |
| NIBUT (s) | A | 18.6 ± 15.5 | 44.1 ± 25.6 | 0.0003* |
| B | 24.6 ± 17.5 | 54.2 ± 27.0 | <0.0001* | |
| Interferometry (score) | A | 12.2 ± 16.4 | 12.0 ± 16.9 | 0.97 |
| B | 12.3 ± 22.6 | 15.8 ± 25.1 | 0.57 | |
| MB (score) | A | 13.8 ± 21.3 | 21.9 ± 41.7 | 0.23 |
| B | 13.5 ± 25.5 | 9.1 ± 23.5 | 0.44 | |
All data expressed as mean ± standard deviation.
*
Paired t-test.