Influence of the type of corneal compensation (variable (VCC) v enhanced (ECC)) on the measured values on images showing atypical retardation pattern
| Parameter | VCC mean (SD) | ECC mean (SD) | Difference of the mean (SD) | 95% CI for the difference | p Value* |
|---|---|---|---|---|---|
| *Paired t test. | |||||
| †Glaucoma group. | |||||
| ‡Normal group. | |||||
| TSNIT SD, TSNIT standard deviation. | |||||
| TSNIT average† | 53.4 (9.6) | 42.7 (7.9) | 10.7 (6.2) | 8.3 to 13.2 | <0.001 |
| TSNIT average‡ | 58.2 (6.3) | 51.8 (6.1) | 6.4 (3.6) | 4.7 to 8.2 | <0.001 |
| TSNIT SD† | 15.1 (4.3) | 18.9 (4.5) | −3.8 (3.7) | −5.3 to −2.3 | <0.001 |
| TSNIT SD‡ | 19.0 (4.1) | 25.1 (4.5) | −6.1 (3.1) | −7.7 to −4.6 | <0.001 |
| Superior average† | 56.4 (12.0) | 49.5 (12.8) | 6.9 (7.7) | 3.9 to 9.9 | <0.001 |
| Superior average‡ | 65.0 (9.8) | 64.3 (11.3) | 0.7 (5.0) | −1.8 to 3.1 | 0.572 |
| Inferior average† | 59.7 (10.5) | 53.6 (10.4) | 6.1 (5.2) | 4.0 to 8.1 | <0.001 |
| Inferior average‡ | 67.3 (9.9) | 66.2 (8.4) | 1.1 (4.3) | −0.9 to 3.2 | 0.260 |